United States v. Gehrmann ( 2018 )


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  •                                                                            FILED
    United States Court of Appeals
    Tenth Circuit
    UNITED STATES COURT OF APPEALS                     April 24, 2018
    Elisabeth A. Shumaker
    TENTH CIRCUIT                          Clerk of Court
    UNITED STATES OF AMERICA,
    Plaintiff - Appellant,
    v.                                                      No. 16-1208
    (D.C. Nos. 1:15-CR-00303-RBJ-1 and
    THOMAS FORSTER GEHRMANN,                           1:15-CR-00303-RBJ-2)
    JR.; ERIC WILLIAM CARLSON,                                (D. Colo.)
    Defendants - Appellees.
    ORDER AND JUDGMENT *
    Before HOLMES, MURPHY, and PHILLIPS, Circuit Judges.
    During a criminal investigation into two chiropractors, Thomas F.
    Gehrmann, Jr. and Eric William Carlson (collectively, “Defendants”), the
    government obtained warrants to search Defendants’ businesses and associated
    storage facility for evidence supporting allegations of criminal tax offenses and
    healthcare fraud. In support of the warrants, a federal agent furnished a forty-three
    page probable-cause affidavit; it outlined the government’s existing evidence,
    *
    This order and judgment is not binding precedent, except under the
    doctrines of law of the case, res judicata, and collateral estoppel. It may be cited,
    however, for its persuasive value consistent with Fed. R. App. P. 32.1 and 10th
    Cir. R. 32.1.
    described certain aspects of independent investigations that had been conducted by
    other entities, including a state regulatory body, and concluded with the agent’s
    opinion that probable cause existed to believe that Defendants committed various
    criminal tax and healthcare-fraud offenses and that evidence of those offenses
    would be found at certain identified locations. A few months earlier, the Colorado
    Department of Regulatory Agencies (“DORA”) had investigated similar allegations
    of healthcare fraud against Dr. Carlson, and had ultimately issued an admonition
    letter (“Admonition Letter”) that made no mention of the healthcare-fraud
    allegations. Rather, DORA’s Admonition Letter noted Dr. Carlson’s failure to
    “make essential entries on patient records,” but declined, largely without
    explanation, to pursue any “formal action.” In crafting the probable-cause
    affidavit, the agent mentioned DORA’s underlying investigation into allegations of
    healthcare fraud, but omitted any reference to DORA’s Admonition Letter.
    During the warrants’ execution, federal agents and investigators seized
    responsive materials, and a federal grand jury subsequently charged Defendants
    with seven separate criminal tax offenses but, notably, no healthcare-fraud
    offenses. In advance of trial, Defendants moved to suppress the seized evidence
    and requested a Franks hearing,1 arguing that the federal agent intentionally or
    recklessly omitted from his affidavit DORA’s Admonition Letter and that the
    1
    See Franks v. Delaware, 
    438 U.S. 154
    (1978).
    2
    warrant would not have issued if that correspondence had appropriately been
    included.
    The government opposed suppression. Following a Franks hearing, the
    district court found DORA’s Admonition Letter material to the probable-cause
    determination for the suspected healthcare offenses but not the tax offenses. It
    further concluded that the invalid healthcare portions of the warrants were not
    severable from the valid tax portions, and suppressed all evidence seized under the
    warrants. The government filed this interlocutory appeal from this suppression
    ruling, attacking the district court’s materiality and severability determinations, but
    not the court’s antecedent conclusion that the agent intentionally or recklessly
    omitted DORA’s Admonition Letter.
    Exercising jurisdiction over this appeal pursuant to 18 U.S.C. § 3731, we
    reverse the district court’s suppression order on materiality grounds, and remand
    for further proceedings.
    I
    Drs. Gehrmann and Carlson, along with a nonparty John Davis (“Dr.
    Davis”), owned and operated Atlas Chiropractic Center at Briargate, Inc. (“Atlas”)
    and SpineMed Decompression Centers of Colorado, LLC (“SpineMed”)—two
    adjacent chiropractic businesses with separate storefronts, but shared internal office
    space, employees, bank accounts, and other resources.
    In December 2007, a former patient of Dr. Carlson called United
    3
    Healthcare’s (“United”) fraud hotline to report Dr. Carlson for overbilling, among
    other allegedly improper practices. United’s special investigative unit, Ingenix,
    initiated an investigation into Dr. Carlson, Atlas, and SpineMed, ultimately
    identifying a number of alleged billing improprieties—namely, requiring up-front
    payment for covered services and submitting duplicate or triplicate billings for
    certain services. In the end, “Ingenix’s analysis disclosed” that Dr. Carlson, Atlas,
    and SpineMed received “a total of $460,338.10” due to various billing
    “misrepresentations.” Aplt.’s App., Vol. I, at 64 (Rutkowski Aff., dated Sept. 16,
    2011).
    Ingenix referred these investigative findings to DORA, which opened an
    investigation and retained Dr. Ben Elder as an investigator. In that capacity, Dr.
    Elder reviewed eleven patient files and authored a comprehensive report detailing
    his concerns about Dr. Carlson’s failure to maintain adequate patient records, and
    the evidence that “Dr. Carlson potentially misdiagnosed patients.” 
    Id. at 275
    (Elder
    Report, dated Apr. 27, 2009). As for allegations of double billing by Dr. Carlson,
    Dr. Elder explained that the ostensible scheme “involved the patient paying cash to
    Dr. Carlson, as well as him receiving insurance reimbursement . . . for the same
    services,” without redistributing the “alleged insurance payments . . . to the
    patients.” 
    Id. Given “the
    limited documentation concerning [Dr. Carlson’s
    financial transactions],” however, Dr. Elder found that “this aspect of the case
    could not be concluded.” 
    Id. at 276.
    Nonetheless, Dr. Elder expressed his belief
    4
    that, given the “great deal of essential documentation that was missing from every
    file reviewed in th[e] case[,]. . . . Dr. Carlson and/or his attorney were
    intentionally trying to defraud [DORA].” 
    Id. at 275
    . He suggested that Dr.
    Carlson’s “absolute[]” failure to maintain financial records “warrant[ed] possible
    consultation with the Internal Revenue Service,” 
    id. at 276.
    Indeed, Dr. Elder
    encouraged DORA to “pass [his findings] along to the appropriate authorities.” 
    Id. DORA subsequently
    provided Investigator Galeassi, a Senior Investigator
    with the Department of Labor (“DOL”), several documents regarding DORA’s
    investigation into Dr. Carlson, including Dr. Elder’s report. Upon receipt,
    Investigator Galeassi forwarded the materials to the U.S. Attorney’s Office. See
    Aplt.’s App., Vol. I, at 144–45 (Letter from Investigator Galeassi to an Assistant
    U.S. Attorney, dated May 14, 2009). Agent Rutkowski, a Special Agent with the
    Internal Revenue Service (“IRS”) Criminal Investigation Unit, appears to have
    received the DORA investigative documents in the fall of 2010. After that, the
    DOL and the IRS proceeded with a joint investigation into Dr. Carlson—and,
    ultimately also Dr. Gehrmann, Atlas, SpineMed, and non-party Dr. Davis—with
    Investigator Galeassi focusing on the healthcare-fraud aspect of the investigation,
    while Agent Rutkowski focused on the tax-fraud dimension.
    On March 23, 2011, DORA issued an Admonition Letter to Dr. Carlson. 
    Id. at 147
    (Letter of Admonition, dated Mar. 23, 2011). DORA indicated that it was
    doing so in lieu of initiating a “formal action” against Dr. Carlson. 
    Id. In the
    5
    single-page letter, DORA found that Dr. Carlson violated DORA regulations, by
    failing to “make essential entries on patient records including family and social
    history and appropriate intake examination information.” 
    Id. Pointing only
    to
    issues with patient documentation—and, importantly, without mentioning the
    healthcare-fraud allegations that gave rise to the investigation—DORA
    “admonishe[d] [Dr. Carlson] and warn[ed] [him] that repetition of such conduct
    [might] lead to imposition of more severe disciplinary sanctions.” 
    Id. Finally, DORA
    described the Admonition Letter as “a full and final resolution of the issues
    raised” in DORA’s investigation—but not “any other cases, complaints, or
    matters”—and stated that, “[p]ursuant to an agreement with [DORA],” Dr. Carlson
    had “agreed to waive the right . . . to contest th[e] Letter of Admonition through a
    formal disciplinary proceeding and appeal.” 
    Id. Shortly thereafter,
    on September 16, 2011, Agent Rutkowski executed a
    forty-three page probable-cause affidavit as part of a search-warrant application for
    Atlas’s and SpineMed’s office. At the outset of the affidavit, Agent Rutkowski
    detailed the outstanding investigation into Drs. Carlson and Gehrmann, and their
    affiliated businesses, Atlas and SpineMed, for possible violations of the following
    criminal statutes: (1) 26 U.S.C. § 7201 (Attempt to Evade or Defeat Tax); (2) 26
    U.S.C. § 7206(1) (Filing False Income Tax Returns Under Penalties of Perjury); (3)
    18 U.S.C. § 371 (Conspiracy); (4) 18 U.S.C. § 1035 (False Statements Related to
    Health Care Matters); (5) 18 U.S.C. § 1341 (Mail Fraud (Frauds and Swindles));
    6
    (6) 18 U.S.C. § 1343 (Wire Fraud); (7) 18 U.S.C. § 1347 (Health Care Fraud); and
    (8) 18 U.S.C. § 2 (Aiding and Abetting).2
    As the basis for these alleged violations, Agent Rutkowski traced the
    investigation from its beginning, starting with the initial “patient complaint
    regarding double billing,” Aplt.’s App., Vol. I, at 63, Ingenix’s investigation and
    finding, see 
    id. at 64,
    and the subsequent referral of Ingenix’s “investigative
    findings” to DORA, 
    id. at 65.
    Turning then to the results of the investigative
    subpoenas, Agent Rutkowski stated that a review of Defendants’ financial
    documents—specifically, their personal bank accounts, personal tax returns, and
    corporate tax returns—revealed that Defendants took part “in a conspiracy to divert
    corporate receipts from medical patients into their various personal bank accounts,
    for the purpose of Tax Evasion.” 
    Id. Agent Rutkowski
    explained that:
    A review of the deposited checks indicate[d] [that] patients [were]
    given instructions to make the checks payable to a specific doctor.
    On some of the checks, the patient started to make the check
    payable to the business, but then crossed out the name of the
    2
    In separate attachments, Agent Rutkowski listed the locations to be
    searched, Atlas and SpineMed, and described the items to be seized—a wide array
    of financial, business, and patient records. The thirty-one point description of
    items to be seized included some items seemingly relevant only to tax fraud, others
    that appeared to relate solely to healthcare fraud, and then some categories of
    information that were arguably relevant to both offenses. During the Franks
    hearing, Agent Rutkowski expressed his opinion on how to characterize certain
    categories of seized items. Nonetheless, because we resolve this appeal on
    materiality grounds, we need not—and thus do not—determine the appropriate
    characterization of each category of seized evidence, as we would if we were
    obliged to conduct a severability analysis.
    7
    business and made the check payable to the doctor. It also appears
    that someone made a designation on the top portion of many of the
    checks, writing the letter “C”, “D”, or “G” along with other
    miscellaneous alpha characters.
    
    Id. at 66.
    Marrying these checks to the bank account statements of Atlas,
    SpineMed, and Defendants, Agent Rutkowski classified “the money being
    deposited into the various personal bank accounts . . . as a ‘corporate diversion’”
    because Atlas and SpineMed “never recorded [the checks] in the books” and
    Defendants did “not report[]” them “on their individual tax returns.” Id.; see also
    
    id. at 69
    (estimating the amounts of diverted funds). Against that backdrop, Agent
    Rutkowski claimed probable cause to believe that Defendants committed various
    criminal tax-fraud offenses, and that evidence of these offenses would likely be
    uncovered at the offices of Atlas and SpineMed.
    Under a separate heading titled “Federal Health Care Benefit Programs:
    Employee Benefit Plans,” Agent Rutkowski offered further information regarding
    DORA’s investigation.3 
    Id. at 70.
    Focusing on the allegations of healthcare fraud,
    Agent Rutkowski recounted United’s investigation, through Ingenix, and Dr.
    Elder’s report (discussing it in considerable detail over several pages). Agent
    Rutkowski ultimately relied on the findings of both investigations (i.e., of Ingenix
    3
    Although not apparent from the face of the affidavit, Investigator
    Galeassi drafted the healthcare-related allegations, and provided them to Agent
    Rutkowski for incorporation into a single affidavit concerning both sets of alleged
    offenses (i.e., tax and healthcare).
    8
    and Dr. Elder) in averring that Dr. Carlson exhibited a “pattern of misrepresenting
    the actual services [he] provided” in connection with insurance reimbursement, 
    id. at 77.
    Importantly, however, Agent Rutkowski made no mention of the “full and
    final resolution” embodied in DORA’s Admonition Letter—“a disciplinary action”
    that DORA took nearly six months before Agent Rutkowski executed his affidavit.
    
    Id. at 147
    . Nonetheless, as in the tax-offenses portion of the affidavit, Agent
    Rutkowski stated his view that there was probable cause to believe that the offices
    of Atlas and SpineMed contained evidence of the specified healthcare offenses.
    A magistrate judge issued the search and seizure warrant on the same day,
    and Agent Rutkowski (along with other agents from the IRS and the DOL)
    executed the warrant on September 22, 2011, seizing patient files, business records,
    and the like. During the search, the agents learned of a separate storage unit,
    containing additional business records. Relying on the same underlying affidavit
    (including its attachments), Agent Rutkowski obtained an additional warrant to
    search the storage unit and, there, seized responsive materials.
    On July 22, 2015, a federal grand jury returned a seven-count indictment,
    charging Drs. Carlson and Gehrmann each with one count of conspiracy to defraud
    the United States, in violation of 18 U.S.C. § 371, and three counts each of filing
    false tax returns, in violation of 26 U.S.C. § 7206(1). Notably, the indictment did
    not charge the Defendants with healthcare-fraud offenses.
    Following the indictment, Defendants moved “to suppress [any and all]
    9
    evidence recovered pursuant to the search of their place of business and related
    storage unit,” 
    id. at 33
    (Defs.’ Mot. to Suppress Evid., filed Nov. 9, 2015), on the
    theory, as relevant here, that Agent Rutkowski premised his probable-cause
    affidavit principally “upon the DORA allegations and investigation,” 
    id. at 52;
    see
    also 
    id. at 41–43,
    but “[a]t no time . . . . explain[ed] that ultimately the DORA
    matter resolved with findings that most of the initial accusations were unfounded,”
    
    id. at 51–52.
    Pressing this position, Defendants argued that Agent Rutkowski’s
    “fail[ure] to provide a full, fair and frank picture” of DORA’s investigation cast
    doubt on the overall veracity of his affidavit, 
    id. at 52,
    requiring a Franks hearing
    and ultimately the suppression of all evidence “obtained pursuant to the warrants
    issued based on th[e] affidavit,” 
    id. at 53;
    see also 
    id. at 176–96
    (Defs.’ Reply to
    Mot. to Suppress Evid., filed Jan. 29, 2016) (restating Defendants’ position on the
    materiality of the DORA letter, and asserting that the affidavit failed to establish
    probable cause for any tax or healthcare offenses). Opposing Defendants’ motion,
    the government countered, in relevant part,4 that Agent Rutkowski “accurately
    recounted the genesis of the DORA proceeding as to defendant [Dr.] Carlson and
    4
    Aside from contesting the merits of Defendants’ suppression motion,
    the government challenged Defendants’ “standing” to contest the warrants,
    asserting that Defendants lacked a reasonable expectation of privacy in the
    searched commercial premises. Aplt.’s App., Vol. I, at 155–59. The district court
    rejected the government’s position, and the government mounts no challenge to
    this determination on appeal. Thus, we deem any such argument to be abandoned
    and, thus, waived here.
    10
    Atlas,” 
    id. at 172
    (Gov’t’s Opp’n, filed Nov. 20, 2015), and asserted that Agent
    Rutkowski’s “innocent” omission of DORA’s Admonition Letter was immaterial to
    the magistrate judge’s probable-cause determination, 
    id. at 173–74.
    In any event,
    the government reasoned that DORA’s Admonition Letter would have “no
    relevance” to the probable-cause showing regarding the alleged tax violations. 
    Id. at 173.
    The district court decided that Defendants had made a sufficient showing to
    warrant a Franks hearing and conducted it on April 13, 2016. The court received
    testimony from Agent Rutkowski concerning the preparation of his probable-cause
    affidavit, along with follow-up legal argument. Briefly recounted, Agent
    Rutkowski testified that he knew of and had reviewed DORA’s Admonition Letter
    during his preparation of the affidavit, and acknowledged that, though he “included
    the underlying documents that went along with [DORA’s] investigation,” he
    elected not to include the resulting Admonition Letter. 
    Id., Vol. II,
    at 319 (Franks
    Hr’g Tr., dated Apr. 13, 2016).
    Nonetheless, Agent Rutkowski attempted to explain away his omission of the
    Admonition Letter on the following grounds: first, he viewed the correspondence as
    a “settlement letter” or “letter of punishment” with “no bearing on any criminal
    investigation,” id.; accord 
    id. at 33
    2; second, he emphasized that Investigator
    Galeassi acted as “the primary input mechanism” for the healthcare-related (and
    thus, presumably, DORA-related) allegations, 
    id. at 319–20;
    and finally, he stated
    11
    that the admonition letter was “ultra vague,” in that “[i]t [didn’t] tell [him] much
    about the investigation, the character of it, [or] what happened,” 
    id. at 33
    5. Rather,
    he viewed the underlying materials as the “original” and “best” method of
    “present[ing] [the magistrate judge] with the facts and circumstances behind the
    investigation.” 
    Id. at 337.
    On April 25, 2016, the district court granted Defendants’ suppression
    motion, making two findings relevant to our disposition. First, the district court
    concluded that “Agent Rutkowski misrepresented the health care fraud allegations
    as though they had not yet been resolved and omitted the Admonition Letter with
    the intent to mislead—or, at the very least, with a reckless disregard of whether it
    would mislead—the magistrate judge.” 
    Id. at 390
    (Order, filed Apr. 25, 2016).
    And, second, the district court found the omission of the letter to be material,
    because an explanation that “DORA had investigated the health care fraud
    allegations, subsequently decided not to sustain the health care fraud charges, and
    issued the Admonition letter . . . would have vitiated probable cause to search the
    Atlas/SpineMed Office and Storage Unit . . . for evidence of that crime,” i.e.,
    healthcare fraud. 
    Id. at 391
    (emphases added). The district court concluded,
    however, that the affidavit “set[] forth facts establishing probable cause of tax
    evasion,” 
    id. at 392,
    but ultimately deemed “the valid portions of the warrant (tax
    evasion)” inseverable “from the invalid portions of the warrant (health care fraud),”
    12
    
    id. at 394.5
    Accordingly, the district court reasoned that “[t]he search warrants
    must be voided completely and the fruits of the searches suppressed in their
    entirety.” 
    Id. The government
    timely filed this interlocutory appeal from the
    suppression ruling.
    III
    Under Franks v. Delaware,
    [w]e exclude evidence discovered pursuant to a search warrant
    when (1) a defendant proves by a preponderance of the evidence
    “the affiant knowingly or recklessly included false statements in
    or omitted material information from an affidavit in support of a
    search warrant and (2) after excising such false statements and
    considering such material omissions we conclude the corrected
    affidavit does not support a finding of probable cause.”
    United States v. Campbell, 
    603 F.3d 1218
    , 1228 (10th Cir. 2010) (alterations
    omitted) (quoting United States v. Garcia–Zambrano, 
    530 F.3d 1249
    , 1254 (10th
    Cir. 2008)); see also United States v. Kennedy, 
    131 F.3d 1371
    , 1376 (10th Cir.
    1997). “The standards of deliberate falsehood and reckless disregard set forth in
    Franks apply to material omissions as well as affirmative falsehoods.” United
    States v. Ruiz, 
    664 F.3d 833
    , 838 (10th Cir. 2012) (quoting United States v.
    McKissick, 
    204 F.3d 1282
    , 1297 (10th Cir. 2000)). “An omission is material if it is
    5
    In reaching the severability determination, the district court
    questioned “whether the severability doctrine applies to a Franks challenge,” and
    construed the affidavit as comprised of valid and invalid “portion[s]” but without
    specifying any dividing line. Aplt.’s App., Vol. II, at 394. The parties
    substantively discuss these findings on appeal, but our resolution of this appeal on
    materiality grounds obviates the need to resolve these severability questions.
    13
    ‘so probative as to negate probable cause.’” 
    Id. (quoting Stewart
    v. Donges, 
    915 F.2d 572
    , 582 n.13 (10th Cir. 1990)).
    Probable cause exists to support a search warrant when, “given all the
    circumstances set forth in the affidavit . . ., there is a fair probability that
    contraband or evidence of a crime will be found in a particular place.” United
    States v. Artez, 
    389 F.3d 1106
    , 1111 (10th Cir. 2004) (emphasis added) (quoting
    Illinois v. Gates, 
    462 U.S. 213
    , 238 (1983)). Probable cause does not require a
    showing of “proof beyond a reasonable doubt or by a preponderance of the
    evidence.” See 
    id. (quoting Gates,
    462 U.S. at 235); see also Spinelli v. United
    States, 
    393 U.S. 410
    , 419 (1969) (“[O]nly the probability, and not a prima facie
    showing, of criminal activity is the standard of probable cause.”), abrogated on
    other grounds by 
    Gates, 462 U.S. at 238
    . Probable cause is not a rigid formula, but
    rather a “fluid concept—turning on the assessment of probabilities in particular
    factual contexts—not readily, or even usefully, reduced to a neat set of legal rules.”
    
    Gates, 462 U.S. at 232
    ; see also United States v. Leon, 
    468 U.S. 897
    , 958 (1984)
    (Brennan, J., dissenting) (probable cause is a “relaxed standard”).
    An “affidavit in support of a search warrant must contain facts sufficient to
    lead a prudent person to believe that a search would uncover contraband or
    evidence of criminal activity.” United States v. Edwards, 
    813 F.3d 953
    , 960 (10th
    Cir. 2015) (quoting United States v. Danhauer, 
    229 F.3d 1002
    , 1006 (10th Cir.
    2000)). We simply must make a “practical, common-sense determination,” 
    id., 14 whether,
    under the totality of the circumstances presented in the affidavit, there is a
    “substantial basis” to conclude that “there is a fair probability that contraband or
    evidence of a crime will be found will be found in a particular place.” United
    States v. Long, 
    774 F.3d 653
    , 658 (10th Cir. 2014) (emphases added) (quoting
    
    Gates, 462 U.S. at 236
    , 238); cf. United States v. Martin, 
    426 F.3d 68
    , 77 (2d Cir.
    2005) (“The fact that an innocent explanation may be consistent with the facts
    alleged . . . does not negate probable cause.”).
    As for a district court’s ruling regarding suppression after a Franks hearing,
    “we review for clear error the district court’s findings regarding the truth or falsity
    of statements in the affidavit and regarding the intentional or reckless character of
    such falsehoods.” 
    Ruiz, 664 F.3d at 838
    (quoting 
    Garcia-Zambrano, 530 F.3d at 1254
    ). However, we “review the district court’s ultimate determination that the
    corrected affidavit supports a finding of probable cause de novo.” 
    Campbell, 603 F.3d at 1228
    . It ineluctably follows that this same standard (i.e., de novo) governs
    our review of a district court’s essentially obverse ruling that the omitted
    information, which is incorporated into the corrected affidavit, is material—viz.,
    the court’s ruling that the information “is ‘so probative as to negate probable
    cause.’” Ruiz, 
    664 F.3d 833
    , 838 (quoting 
    Stewart, 915 F.2d at 582
    n.13); see
    United States v. Ippolito, 
    774 F.2d 1482
    , 1484 (9th Cir. 1985) (“The ultimate
    question, whether the misstatements are material, . . . should be reviewed de
    novo.”).
    15
    IV
    The district court’s suppression decision was based on a series of sequential
    determinations: first, the district court concluded that Agent Rutkowski
    intentionally or recklessly misled the magistrate judge through his omission of
    DORA’s Admonition Letter; second, the court found that Agent Rutkowski’s
    omission was material, because the letter’s inclusion would have vitiated probable
    cause to search for evidence with respect to the healthcare-fraud offenses; third, the
    court opined that the affidavit contained independent probable cause for the tax-
    based offenses, even if the affidavit included DORA’s Admonition Letter; and
    finally, the court found that the valid tax-related portions of the warrant could not
    be severed from the invalid healthcare-focused portions.
    On appeal, the government challenges only the district court’s severability
    and materiality determinations, arguing that the district court committed reversible
    error “in holding that the tax portion of the warrant in this case was not severable,”
    Aplt.’s Opening Br. at 14, and that the court also erred when it “characterized the
    admonition letter as a finding of ‘not guilty’ to the fraud allegations,” and that the
    letter was actually immaterial “to the probable cause for the suspected healthcare
    offenses,” 
    id. at 15.
    Defendants strongly disagree, contending that the “valid
    portions of the warrant are not sufficiently distinguishable from the invalid portions
    to permit severance,” Aplees.’ Response Br. at 31, and that the government’s
    16
    materiality argument is “meritless,” 
    id. at 38
    (capitalization altered).6
    Although the parties’ appellate briefing places greater emphasis on the
    district court’s severability determination, we conclude that the court erred in its
    materiality determination. This conclusion is sufficient to resolve this appeal.
    Specifically, by concluding that Defendants have not shown that the Admonition
    Letter was material to the probable-cause determination regarding the healthcare-
    6
    We note that Defendants begin their attack on the government’s materiality
    argument by claiming that it is “waived.” Aplee.’s Response Br. at 38 (capitalization
    altered). However, this argument is patently misguided and merits little attention.
    Specifically, Defendants argue that the government “conceded the issue of materiality”
    through a “Notice of Clarification” that the government filed after the Franks hearing.
    Aplees.’ Response Br. at 39. The “Notice of Clarification” stated that,
    [i]n reviewing the transcript of the hearing, undersigned counsel
    became concerned that the government’s focus on materiality may have
    been understood as signaling approval of the agent’s decision to omit
    the letter. The government recognizes that the warrant affidavit should
    have included information about DORA’s resolution of a claim. It
    believes that the omission was the result of poor judgment by a new
    agent, and nothing more. But regardless of the agent’s intention, the
    information should have been included.
    Aplees.’ Suppl. App. at 1 (emphasis added) (Gov’t’s Notice of Clarification, filed Apr.
    15, 2016). Seizing on the “should have included” language, Defendants argue that the
    “government’s clarification conceded . . . that information about the Admonition Letter”
    was material to the probable cause determination. Aplees.’ Response Br. at 39. Not so.
    Nothing in the government’s clarification suggests it was conceding the materiality of the
    Admonition Letter. On the contrary, the notice restates “the government’s focus on
    materiality.” Aplees.’ Suppl. App. at 1. At most, the notice could be read as a concession
    by the government that the DORA letter was relevant (as opposed to material)—and,
    consequently, should have been included in the affidavit for the magistrate judge’s
    consideration—and that the Admonition Letter was omitted with reckless disregard (the
    first prong of Franks). Neither the relevancy of the letter nor the agent’s intent, however,
    is at issue here.
    17
    fraud offenses, we are essentially saying that Agent Rutkowski’s inclusion of the
    Admonition Letter in the affidavit would not have vitiated the probable cause
    regarding these offenses. And the affidavit’s probable-cause showing regarding the
    tax-related offenses is not at issue here. Consequently, our decision to overturn the
    district court’s materiality determination, related to the healthcare-fraud portion of
    the affidavit, effectively rejects the only challenge to the probable-cause basis of
    the affidavit, and this provides a sufficient basis for reversing the district court’s
    suppression order.
    A
    The Admonition Letter was indisputably relevant and should have been
    included in Agent Rutkowski’s affidavit; however, relevance does not equate to
    materiality. In our view, the letter was not “so probative as to negate probable
    cause.” 
    Ruiz, 664 F.3d at 838
    . In concluding otherwise, the district court erred in
    at least two ways. First, it imparted a meaning to the letter that simply is not
    evident on its face. Second, it focused solely on the letter, rather than the totality
    of the circumstances, when evaluating the corrected affidavit.
    1
    The Admonition Letter does not draw any conclusions or make any findings
    regarding the healthcare-fraud allegations that precipitated DORA’s investigation. 7
    7
    Defendants do not even attempt to dispute that DORA did not make
    (continued...)
    18
    In spite of this, the district court construed the letter as an affirmative adjudication
    of these allegations. Indeed, during the Franks hearing, the district court
    described the Admonition Letter as a finding that Dr. Carlson “was not guilty” of
    healthcare fraud. Aplt.’s App., Vol. II, at 368. In its suppression decision,
    moreover, the district court reiterated the same belief, stating that “DORA did not
    sustain the health care fraud charges that it investigated.” 
    Id. at 389;
    accord 
    id. (finding that
    “DORA examined and investigated those allegations and did not
    sustain the health care fraud charges”).
    We discern no significant basis in the text of the Admonition Letter for the
    meaning the district court attributed to it. True, the letter states that it is a “full
    and final resolution of the issues raised in” the case before it—which was premised
    on healthcare-fraud allegations—and DORA ultimately did not take action against
    Dr. Carlson for healthcare fraud. But aside from referencing the case, the letter is
    silent regarding the healthcare-fraud allegations. It does not describe the
    allegations. It does not state what evidence DORA considered. It does not state
    what findings, if any, DORA made regarding the healthcare-fraud allegations.
    7
    (...continued)
    “specific findings about alleged healthcare fraud” in the Admonition Letter. Aplee.’s
    Response Br. at 40 n.10. Nor could they. They simply ask us to follow the district
    court’s lead by inferring from this decisional silence that DORA exculpated Dr. Carlson
    and his related entities with respect to the healthcare-fraud allegations. In this regard,
    they tell us that it matters not “why DORA might have resolved its investigation” of these
    allegations in this manner, “[w]hat matters” is that it did so. 
    Id. As we
    explain infra, we
    are not persuaded.
    19
    And, most importantly, it does not state that, after considering all of the evidence
    before it, DORA found the healthcare-fraud allegations to be meritless.
    The letter appears to be a quasi-settlement, and is seemingly drafted in an
    intentionally vague manner as a result. The district court even acknowledged that
    “in some sense the Admonition Letter is a ‘settlement letter.’”8 
    Id. at 389.
    Yet, the
    court then seemed to conflate the relevance of the letter—which is uncontested
    here—with its materiality. It is not clear why the district court believed that a state
    licensing board’s unexplained decision to settle a case would vitiate probable cause
    for the underlying criminal conduct that gave rise to the case. Generally,
    settlement provides a means of efficiently resolving a case without incurring the
    expense of litigation,9 but it does not typically involve an adjudication on the
    8
    The Admonition Letter states, “Pursuant to agreement with [DORA], you
    have agreed to waive the right provided by § 12-33-119(a), C.R.S., to contest this Letter
    of Admonition through a formal disciplinary proceeding and appeal.” Aplt.’s App. at
    147.
    9
    DORA is authorized to discipline licensees for violations of state
    healthcare-fraud laws. See COLO. REV. STAT. § 12-33-117(1)(k) (“[T]he board may issue
    a letter of admonition to a licensee or may revoke, suspend, deny, refuse to renew, or
    impose conditions on such licensee’s license . . . [for] [v]iolation [or] abuse of health
    insurance pursuant to COLO. REV. STAT. § 18-13-119 [i.e., criminal healthcare fraud], or
    commission of a fraudulent insurance act, as defined in COLO. REV. STAT. § 10-1-128
    [i.e., civil insurance fraud] . . . .”). However, Dr. Carlson and his affiliated entities would
    have been entitled to a formal hearing to challenge any such allegations, at which DORA
    would bear the burden of proof. See 
    id. § 12-33-119(9)(a)
    (giving recipients of
    admonition letters the “right to . . . formal disciplinary proceedings . . . to adjudicate the
    propriety of the conduct upon which the letter of admonition is based”); 
    id. § 12-33-119(4)
    (“Disciplinary proceedings and hearings shall be conducted in the manner
    prescribed by [COLO. REV. STAT. § 24-4-105].”); 
    id. § 24-4-105(7)
    (“[T]he proponent of
    (continued...)
    20
    merits of all matters within the scope of the case, let alone a sub silentio
    adjudication of these matters.
    Moreover, it strains credulity to believe that the explicit and strong
    suggestions of healthcare fraud communicated by Dr. Elder in his report prior to
    the release of DORA’s Admonition Letter could have been addressed and rejected
    by DORA through such silence. Specifically, Dr. Elder strongly suggested that Dr.
    Carlson and his affiliated entities were involved in healthcare fraud. Indeed,
    although the limited documentation provided by Dr. Carlson constrained Dr. Elder
    from reaching a conclusive determination, he found evidence of a scheme that
    “involved the patient paying cash to Dr. Carlson, as well as him receiving
    insurance reimbursement . . . for the same services,” without redistributing the
    “alleged insurance payments . . . to the patients.” Aplt.’s App., Vol. I, at 275. Dr.
    Elder then expressed his belief that “Dr. Carlson and/or his attorney were
    intentionally trying to defraud [DORA],” 
    id. (emphasis added),
    and suggested that
    Dr. Carlson’s “absolute[]” failure to maintain financial records “warrant[ed]
    possible consultation with the Internal Revenue Service,” 
    id. at 276.
    If DORA had
    9
    (...continued)
    an order shall have the burden of proof.”). And that burden would have been by a
    preponderance of the evidence. See 
    id. § 24–4–105(7)
    (“The rules of evidence and
    requirements of proof shall conform, to the extent practicable, with those in civil nonjury
    cases in the district courts.”); 
    id. § 13–25–127(1)
    (“[T]he burden of proof in any civil
    action shall be by a preponderance of the evidence.”); see generally Gerner v. Sullivan,
    
    768 P.2d 701
    , 703–04 (Colo. 1989) (en banc) (discussing the burden-of-proof
    requirements of § 13–25–127(1)).
    21
    actually tackled and rejected these very serious allegations from the person it
    charged and entrusted with conducting the misconduct investigation (i.e., Dr.
    Elder) we find it hard to believe that it would have done so through silence.10
    To be sure, Defendants suggest that we should defer under a clear-error
    standard of review to the district court’s “characterization” of DORA’s Admonition
    Letter, Aplee.’s Response Br. at 40—specifically, as a finding that Dr. Carlson
    “was not guilty” of the healthcare-fraud allegations, Aplt.’s App., Vol. II, at 368.
    This suggestion, however, is misguided. The district court’s interpretation of the
    meaning of the DORA letter was inextricably intertwined with its materiality
    determination. And our standard of review of a materiality determination—that is,
    whether the information in a corrected affidavit (here, the DORA Admonition
    Letter) “is ‘so probative as to negate probable cause’”—is de novo. 
    Ruiz, 664 F.3d at 838
    (quoting 
    Stewart, 915 F.2d at 582
    n.13); see 
    Ippolito, 774 F.2d at 1484
    .
    Accordingly, it logically and necessarily follows that our consideration of the
    meaning of the DORA Admonition Letter also must be de novo. Moreover,
    applying the standard of review that is typically associated with legal
    10
    It seems much more likely that, because Dr. Elder could not definitively
    bring to a close the “aspect of the case” involving double-billing and other healthcare
    fraud, because of the “great deal of essential documentation that was missing from every
    file” that Dr. Carlson supplied during the investigation, DORA decided to side-step the
    issue of healthcare fraud and secure instead Dr. Carlson’s agreement not to contest a
    disciplinary sanction for the clear and concrete record-keeping violations that Dr. Elder
    unearthed. Aplt.’s App., Vol. I, at 275–76.
    22
    questions—i.e., de novo—seems most appropriate for our consideration of the
    meaning of DORA’s Admonition Letter, for it is effectively a settlement
    agreement. See, e.g., Flying J Inc. v. Comdata Network, Inc., 
    405 F.3d 821
    ,
    831–32 (10th Cir. 2005) (noting that “[t]he general rules of contract interpretation
    under state law apply to settlement agreements” and that, under Utah law, “[e]ven
    if the court refers to extrinsic evidence to make th[e] determination, contractual
    ambiguity presents a question of law that we review de novo”); Dillard & Sons,
    Const., Inc. v. Burnup & Sims Comtec, Inc., 
    51 F.3d 910
    , 914 (10th Cir. 1995)
    (“Under Oklahoma law, it is well-settled that the interpretation of an unambiguous
    contract is a question of law for the court.”); see also 5 AM. JUR.2d Appellate
    Review § 647, Westlaw (database updated Feb. 2018) (noting that the
    “[d]eterminations of law subject to plenary review on appeal” include “the proper
    interpretation of the provisions of a consent decree or settlement agreement,
    contract, or other written instrument” (footnotes omitted)). Furthermore, even
    assuming arguendo that this interpretive task has some embedded, appreciable
    factual component, we have no doubt that the task still “entails primarily legal . . .
    work” and, therefore, de novo review nevertheless would be appropriate. U.S.
    Bank Nat’l Ass’n ex rel. CW Capital Asset Mgmt. LLC v. Vill. at Lakeridge, LLC, --
    - U.S. ----, 
    138 S. Ct. 960
    , 967 (2018) (emphasis added). Applying that standard,
    we conclude that the district court erred in construing the DORA Admonition
    Letter as a finding that Dr. Carlson was “not guilty” of healthcare fraud. Aplt.’s
    23
    App., Vol. II, at 368.
    2
    The district court also erred in failing to consider “all the circumstances set
    forth in the [corrected] affidavit,” 
    Artez, 389 F.3d at 1111
    ; instead, it focused
    solely on the Admonition Letter. After citing the general standard for probable
    cause the court simply concluded in one sentence that,
    had the affidavit explained that DORA had investigated the health
    care fraud allegations, subsequently decided not to sustain the
    health care fraud charges, and issued the Admonition Letter, then
    that information would have vitiated probable cause to search the
    Atlas/SpineMed Office and Storage Unit 412 for evidence of that
    crime.
    Aplt.’s App., Vol. II, at 391. The court did not weigh the letter—even under its
    erroneous interpretation of its meaning—against the other evidence of healthcare
    fraud included in the affidavit. Rather, the court essentially accorded dispositive
    effect to DORA’s admonition letter. This was error. A proper probable-cause
    determination requires consideration of “the totality of the information” contained
    in the affidavit. 
    Barajas, 710 F.3d at 1108
    (emphasis added) (quoting 
    Roach, 582 F.3d at 1200
    ). Put differently, a determination of “whether probable cause exists to
    support a search warrant” requires engagement with “all the circumstances set forth
    in the affidavit.” 
    Artez, 389 F.3d at 1111
    (emphasis added) (quoting 
    Gates, 462 U.S. at 238
    ). The district court’s failure to engage in this way was error and likely
    resulted in the court reaching the wrong conclusion (as discussed infra) regarding
    24
    the materiality of the Admonition Letter. In any event, once we consider “all the
    circumstances set forth in the affidavit,” including the Admonition Letter, we
    conclude infra that there is at least a “substantial basis” to conclude that there was
    a “fair probability” that evidence of healthcare fraud would be found at Atlas,
    SpineMed and the storage unit. 
    Long, 774 F.3d at 658
    (quoting 
    Gates, 462 U.S. at 236
    , 238).
    B
    In our probable cause determination, we consider whether “all the
    circumstances set forth in the affidavit” give rise to “a fair probability that
    contraband or evidence” will be found in the places specified to be searched.
    
    Artez, 389 F.3d at 1111
    (quoting 
    Gates, 462 U.S. at 238
    ). Here, based on our
    review of Agent Rutkowski’s affidavit—corrected to include DORA’s Admonition
    Letter—we conclude that there was a fair probability that evidence of healthcare
    fraud would be found at Atlas, SpineMed, and the storage unit. Under our reading
    of the Admonition Letter, 
    explicated supra
    , we arrive at this conclusion with no
    difficulty. We acknowledge that the conclusion would be somewhat less patent if
    we adopted the district court’s erroneous reading of the Admonition Letter—that is,
    as an affirmative (albeit silent) determination that Dr. Carlson and his related
    entities were not culpable for the investigated healthcare fraud; however, we
    nevertheless would arrive at the same destination, given the abundance of evidence
    of potential healthcare fraud that Agent Rutkowski detailed in his affidavit.
    25
    Because the inclusion of the Admonition Letter in the (corrected) affidavit would
    not have negated probable cause of healthcare fraud—under our interpretation, or
    even the district court’s—the letter cannot be material. And the district court erred
    by concluding to the contrary.
    Turning to the ample evidence of healthcare fraud found in the affidavit, we
    highlight the following, substantively salient paragraphs (numbered as they appear
    in Agent Rutkowski’s affidavit):
    13.    During the course of this investigation, records were
    obtained from United Healthcare (United) relating to a
    patient complaint regarding double billing. Specifically, in
    December 2007, United received a fraud hotline tip from a
    patient of Carlson’s alleging Carlson charged the patient
    $3,500.00 up front for services that he told the patient
    United would not cover. Later, the patient received her
    explanation of benefits (EOBs) from United showing that
    Carlson did submit billings to United for the services and
    failed to reimburse the patient for the overpayments. The
    patient confronted Carlson about the double billing and he
    admitted he had done this. When the patient requested a
    reimbursement check, he stated that he didn’t do anything
    wrong. Nevertheless, Carlson gave the patient $1,700.00 of
    the $3,500.00.
    14.    Subsequent to the fraud hotline tip, United’s Special
    Investigative Unit, Ingenix, initiated an investigation into
    the billing practices of Carlson, Atlas, and SpineMed.
    Ingenix determined through ten more patient interviews that
    Carlson received upfront payments for a treatment plan
    from nine of the ten patients. Carlson charged these
    patients approximately $3,500.00 each for the treatment
    plans and advised each patient the treatment would not be
    covered by United. However, Carlson did bill United,
    retained the insurance reimbursements, and failed to
    reimburse the nine patients.
    26
    15.   Ingenix also learned through the patient interviews the
    patients received Vax-D/Decompression Table Therapy.
    Vax-D/Decompression Table therapy is a non-covered
    service by United. Ingenix found that Carlson, Atlas, and
    SpineMed submitted billings for Vax-D/Decompression
    Table Therapy under codes other than the appropriate code
    in order to obtain payment for this non-covered treatment.
    Ingenix alleged Carlson, Atlas, and SpineMed billed under
    twelve other codes to mask, disguise, and misrepresent the
    services actually rendered. Ingenix’s analysis disclosed a
    total of $460,338.10 was possibly paid in error due to these
    misrepresentations.
    16.   Ingenix also determined Carlson, Atlas, and SpineMed
    submitted duplicate billings and triplicate billings for
    services provided under both Carlson’s name and one or
    both of the business names.
    ....
    23(e). The persons listed in the “Patient List” contained within
    Attachment B, numbered 254–262, represent a list of
    persons identified by Ingenix, and subsequently investigated
    by the Colorado State Board of Chiropractic. According to
    the investigation performed by Ingenix and The Colorado
    State Board of Chiropractic, there is a likelihood the
    Doctors submitted billing to United Healthcare for these
    patients multiple times under various company names and
    Employer Identification Numbers, constituting the illegal
    practice known as double-billing.
    ....
    29(b). Dr. Elder requested the attorney review patient contracts for
    Vax-D treatment and the attorney responded that all
    contracts were verbal. Dr. Elder found this highly unusual
    considering the large amounts of cash required from
    patients to pay for the treatments.
    29(c). No patient records contained a diagnosis.          The only
    27
    diagnosis Dr. Elder could find was contained on the claim
    forms submitted by Dr. Carlson to United Healthcare. Dr.
    Elder found no documentation in any file to justify why the
    patients needed Vax-D treatment and speculated that most
    patients were existing patients and that after Carlson
    purchased the Vax-D tables, the patients were all of a
    sudden candidates for Vax-D without proper work-up or
    establishing the medical necessity of the treatment.
    29(d). Dr. Elder found evidence that Dr. Carlson billed United
    Healthcare for Vax-D treatments under different procedural
    codes and also determined numerous cases involved
    duplicate billing as alleged by United Healthcare.
    ....
    29(f). In comparing the patient files to the claim forms received
    by United Healthcare, Dr. Elder found the United
    Healthcare claims showed nearly every patient had a
    diagnosis of stenosis in the lumbar and thoracic spines yet
    there was absolutely no documentation to justify such a
    diagnosis in the patient file.
    29(g). Dr. Elder found that well over 100 patient visits were billed
    to United Healthcare, yet Dr. Carlson’s patient files
    contained absolutely no documentation or records for the
    dates of service as billed.
    Aplt.’s App., Vol. I, at 63–64, 68, 71–73 (emphases added).
    Simply stated, Agent Rutkowski’s affidavit contained detailed allegations of
    healthcare fraud from two independent reviews of Defendants’ files—one by
    United and the other by Dr. Elder, an expert that DORA retained for purposes of
    investigating the allegations of healthcare fraud. Importantly, both of these
    reviews concluded that there was at least a “likelihood,” 
    id. at 73,
    that Dr. Carlson,
    Atlas, and SpineMed were submitting fraudulent claims to United and other
    28
    insurers— i.e., engaging in healthcare fraud. It is patent that, standing alone, these
    allegations would have presented to the magistrate judge “a fair probability that
    contraband or evidence” of healthcare fraud would be found at Atlas, SpineMed
    and the storage unit, 
    Artez, 389 F.3d at 1111
    (quoting 
    Gates, 462 U.S. at 238
    ).
    And, though unquestionably relevant, we conclude that DORA’s Admonition
    Letter—as we understand it—would not have had an appreciable effect on the
    probable-cause calculus. More specifically, we conclude that the letter would not
    have negated probable cause and, therefore, was not material. The Admonition
    Letter did not address the healthcare fraud allegations, did not state that there was
    insufficient evidence to pursue them, and certainly did not bless Defendants’
    billing practices. It simply identified a distinct, record-keeping violation and
    disciplined Dr. Carlson for it. Under our view of the letter, it was not material.
    Moreover, even under the district court’s erroneous interpretation of
    DORA’s Admonition Letter, we would reach the same conclusion, given the
    expansive and detailed evidence in the affidavit that strongly suggested that
    Defendants had committed healthcare fraud. Admittedly, the decisional outcome
    would be less crystal clear, given that the district court interpreted the Admonition
    Letter as an affirmative determination by DORA that Dr. Carlson and his related
    entities were not culpable with respect to the investigated allegations of healthcare
    fraud. But that determination would have constituted just one data point, which the
    magistrate judge would have weighed against all of the other affidavit evidence, in
    29
    applying the fair-probability standard—including evidence of two independent
    investigations that reached conclusions contrary to the one we attribute here to
    DORA, regarding Dr. Carlson’s involvement in healthcare fraud.
    Indeed, in cases where panels of our court—including a panel in a
    precedential decision—have properly considered the totality of the affidavit
    evidence and found that it pointed with some strength in favor of a finding of
    criminal conduct under the fair-probability standard, analogous omissions of
    seemingly exculpatory evidence have been deemed not material. See United States
    v. McKissik, 
    204 F.3d 1282
    , 1288–89, 1297–98 (10th Cir. 2000) (holding that
    where detective “stated in the affidavit that he had personally observed the bag of
    cocaine in plain view in the car when he looked at the sealed car in the
    impoundment lot,” “the facts contained in the affidavit would have supported the
    issuance of a search warrant even if [the detective] had noted the other officers
    failed to mention the cocaine they observed in plain view in their reports”); see
    also United States v. Wright, 350 F. App’x 243, 247–48 (10th Cir. 2009)
    (unpublished) (concluding that a detective’s omission of “several unsuccessful
    attempts to corroborate allegations” of drug activity against the defendant was
    immaterial, because the affidavit independently established probable cause through
    anonymous complaints and confidential informants and information regarding
    defendant’s “failure to report income to federal and state tax agencies for a number
    of years”); United States v. Brinlee, 146 F. App’x 235, 239 (10th Cir. 2005)
    30
    (unpublished) (holding that an officer’s omission of details that allegedly could
    have led the magistrate judge to infer from “[a cooperating witness’s] behavior that
    she was under the influence of drugs or had a motive to lie,” was not material
    where “the affidavit contained detailed descriptions given by [the witness] along
    with information from other sources, which enhanced her credibility and
    corroborated her statements about the presence of drugs in the house”); United
    States v. Hutto, 84 F. App’x 6, 8 (10th Cir. 2003) (unpublished) (concluding that a
    “factual inaccuracy” in an affidavit was immaterial, because the “affidavit
    contain[ed] several facts that combine[d] to support a finding of probable cause”);
    United States v. Kiister, 
    208 F.3d 227
    , *6 (10th Cir. 2000) (unpublished)
    (concluding that a detective’s omission of prior searches that failed to reveal “drugs
    or indisputable evidence of drug trafficking” was immaterial, because other
    information in the affidavit “overwhelmingly provided probable cause for the
    issuance of a warrant, even [with] the omitted material”).11
    Finally, our conclusion that DORA’s Admonition Letter was not material is
    fortified by our recognition that, even assuming DORA exculpated Dr. Carlson and
    his related entities of the investigated allegations of healthcare fraud in its
    Admonition Letter, DORA would have been making that decision under a different,
    11
    Although nonprecedential, we find the foregoing decisions by panels
    of our court persuasive to the extent they address analogous omissions under a
    Franks analysis.
    31
    higher standard of proof than probable cause—specifically, a preponderance-of-the-
    evidence standard. Compare COLO. REV. STAT. § 24-4-105(7) (“The rules of
    evidence and requirements of proof shall conform, to the extent practicable, with
    those in civil nonjury cases in the district courts.”), and 
    id. § 13–25–127(1)
    (“[T]he
    burden of proof in any civil action shall be by a preponderance of the evidence.”),
    with 
    Artez, 389 F.3d at 1111
    (noting that probable cause does not require a showing
    of “proof beyond a reasonable doubt or by a preponderance of the evidence”
    (emphasis added) (quoting 
    Gates, 462 U.S. at 235
    )), and United States v. Patane,
    
    304 F.3d 1013
    , 1018 (10th Cir. 2002) (explaining that probable cause “does not
    require certainty of guilt or even a preponderance of evidence of guilt, but rather
    only reasonably trustworthy information that would lead a reasonable person to
    believe an offense was committed” (emphasis added)), rev’d on other grounds, 
    542 U.S. 630
    (2004).
    Therefore, DORA’s ostensibly exculpatory finding regarding the healthcare-
    fraud allegations would not be logically inconsistent with a determination by the
    magistrate judge that, considering the totality of the circumstances, there was
    probable cause to criminally investigate those same or similar allegations. Put
    another way, even assuming arguendo that it is reasonable to infer from DORA’s
    Admonition Letter that the agency considered the healthcare-fraud allegations and
    decided that it could not establish them in a formal action—thus, effectively
    exculpating Dr. Carlson—that would not necessarily mean that a magistrate judge
    32
    could not have reasonably concluded that there was probable cause to believe that
    criminal offenses related to those allegations had been committed. And, more to
    the point, Defendants have failed to make an adequate showing that the magistrate
    judge could not have reached this probable-cause conclusion.
    In sum, for the foregoing reasons, we conclude that the district court erred in
    finding that DORA’s Admonition Letter was material—viz., “so probative as to
    negate probable cause.” 
    Ruiz, 664 F.3d at 838
    (quoting 
    Stewart, 915 F.2d at 582
    n.13); see 
    Ippolito, 774 F.2d at 1484
    . Because the court ultimately based its
    decision to grant Defendants’ suppression motion on this materiality finding, its
    suppression order cannot stand.
    V
    Based on the foregoing, we REVERSE the district court’s suppression order
    on materiality grounds, and REMAND for further proceedings consistent with this
    Order and Judgment.
    ENTERED FOR THE COURT
    Jerome A. Holmes
    Circuit Judge
    33