Commr. Eric Watness, Apps. v. The City Of Seattle, Res. ( 2021 )


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  •          THE COURT OF APPEALS FOR THE STATE OF WASHINGTON
    COMMISSIONER ERIC WATNESS, as                           No. 79480-9-I
    Personal Representative of the Estate of
    Charleena Lyles; KAREN CLARK, as                        DIVISION ONE
    Guardian Ad Litem on behalf of the
    decedent’s four minor children,                         PUBLISHED OPINION
    Appellant,
    v.
    THE CITY OF SEATTLE, a municipality;
    JASON M. ANDERSON, an individual;
    STEVEN A. MCNEW, an individual,
    Respondent.
    ANDRUS, A.C.J. — On June 18, 2017, Seattle Police Officers Jason Anderson
    and Steven McNew (the Officers) shot and killed Charleena Lyles after, as the Officers
    contend, she threatened them with a knife. Retired Commissioner Eric Watness,
    personal representative of Lyles’s estate, and Karen Clark, guardian ad litem for Lyles’
    four minor children (referred here jointly as the Estate), sued the City of Seattle (the
    City) and the Officers alleging negligence and assault. The trial court granted the
    Officers’ motion for summary judgment, denied the Estate’s motion for partial
    summary judgment on certain affirmative defenses, and struck the Estate’s three
    No. 79480-9-I/2
    expert declarations. Because there remain genuine issues of material fact, we reverse
    and remand for further proceedings consistent with this opinion.
    FACTUAL BACKGROUND
    In the six months prior to her death, Charleena Lyles called the Seattle Police
    Department (SPD) twenty-three times. On June 5, 2017, SPD responded to one of
    Lyles’s calls in which she reported she had been the victim of domestic violence at
    her apartment in an affordable housing complex owned by Solid Ground. Police
    reports indicate that while officers were in her apartment, Lyles—who was present
    with her young daughter—“armed herself with a pair of extra long metal shears and
    was threatening [responding] officers.” Lyles reportedly told officers, “Ain’t none of
    y’all leaving here today.” Both officers present drew their firearms and commanded
    her to drop the scissors to the floor. Lyles reportedly yelled, “[A]re you going to shoot
    me in front of my daughter?” The police reported that Lyles refused to put down the
    shears even after being repeatedly asked to do so. They told Lyles they were there
    to help her, not to shoot her.
    Additional police officers responded to the scene and reported that during this
    incident, Lyles made several unusual comments, including wanting to “morph into a
    wolf” and talking about “cloning her daughter.” The police described Lyles making
    several “unusual religious comments” and accusing the officers of being “devils” and
    members of the Ku Klux Klan. Officers were ultimately able to convince Lyles to take
    a seat on her sofa and to drop the scissors.
    The police reports further indicate the officers separated Lyles and her young
    child from the scissors and obtained a phone number for a nearby family member who
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    No. 79480-9-I/3
    arrived at Lyles’s apartment shortly thereafter. They then took Lyles into custody.
    The police learned from Lyles’s sister that Lyles had experienced “a recent sudden
    and rapid decline in her mental health.”           The police report described Lyles as
    exhibiting   “[d]isorientation/confusion,”    “[d]isorganized   speech/communication,”
    “[d]isorderly/disruptive behavior,” and “[b]izarre, unusual behavior.” They described
    her as “[b]elligerent/uncooperative, angry,” “[o]ut of touch with reality,” and
    experiencing “[h]allucinations/delusions.” The incident led the officers to flag Lyles
    and her address with an “officer safety caution.” The police booked Lyles into jail for
    harassment but recommended her case be transferred to mental health court.
    On the morning of June 18, 2017, Lyles called 911 to report a residential
    burglary. Lyles informed police that three hours earlier, she had discovered her
    apartment door open and an Xbox missing. Seattle Police Officer Jason Anderson,
    on routine patrol, responded to the call and conducted a routine record check on the
    address. After Officer Anderson noted the officer safety caution associated with Lyles
    and reviewed the police report of the June 5 incident, he requested back up from
    another unit. When Officer McNew arrived, the two officers briefly discussed the prior
    incident. Officer McNew commented they should not let Lyles get behind them or get
    between the officers and her apartment door.
    When the Officers contacted Lyles in her apartment, she was calm and
    cooperative. Lyles told the Officers she had left her apartment unlocked while she
    went to the store and returned to find her Xbox or PlayStation taken. She led the
    Officers down a hall to a back bedroom from which she reported items had been
    stolen. After returning to the kitchen, the officers noticed two young children playing
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    No. 79480-9-I/4
    in the living room. As Officer Anderson asked Lyles to clarify some information for his
    report, he glanced up and saw Lyles lunge at him with a knife. 1 Officer Anderson
    testified that had he not jumped back, Lyles would have stabbed him. He drew his
    firearm and told Lyles to get back. Officer Anderson testified Lyles was yelling at them
    but he could not make out what she was saying.
    Officer Anderson testified Lyles then turned her attention toward Officer
    McNew, who was then cornered in her kitchen.                        Officer McNew asked Officer
    Anderson to use his stun gun. 2 Officer Anderson responded that he did not have his
    stun gun. 3 The Officers both testified that Lyles continued to approach them, knife in
    hand, ignoring their commands to get back. Believing Lyles intended to stab one of
    them, both Officers repeatedly fired their service firearms at Lyles, killing her.
    SPD’s investigation into the police shooting revealed that Lyles had a black-
    handled knife with a four and one-half inch blade in her left jacket pocket and a knife
    sheath in her right jacket pocket. Police recovered a second knife, with a four-inch
    blade, near Lyles’s apartment door. This knife matched the size and shape of the
    sheath in Lyles’s pocket.
    1
    Although the Estate refuses to stipulate to the facts as presented by the Officers, it has not presented
    any evidence to dispute their account of Lyles’s actions in her apartment immediately before the
    shooting. We therefore accept this account as undisputed.
    2
    The witnesses use the word “Taser,” but we refer to the device generically as a “stun gun.” We
    intend to use the two words interchangeably here.
    3
    Officer Anderson was certified to carry and deploy a stun gun. Under Seattle Police Department
    policy, once certified, a police officer is required to carry his stun gun. Following the shooting, Officer
    Anderson received a two-day suspension for his failure to carry his stun gun device with him on patrol
    that day.
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    No. 79480-9-I/5
    The Estate brought this lawsuit alleging common law negligence and assault. 4
    The City and the Officers asserted a number of affirmative defenses, including
    immunity under RCW 4.24.420, qualified immunity, assumption of risk, and
    discretionary immunity.
    The City and Officers moved for summary judgment, principally arguing the
    Officers owed no legal duty to Lyles under the public duty doctrine and that they were
    immune from suit under Washington’s felony defense statute, RCW 4.24.420. The
    Estate opposed this motion and moved to dismiss the affirmative defenses of qualified
    immunity and assumption of risk and the City’s discretionary immunity defense, and
    submitted declarations from three expert witnesses, two in police conduct and
    practices and one in forensic psychology.
    The admissibility of the experts’ testimony is a key issue in this appeal.
    Criminologist Thomas Mauriello opined that the Officers’ use of their firearms was
    unreasonable in light of the circumstances and contrary to SPD policies on de-
    escalation. Police practices expert D.P. Van Blaricom opined that Lyles’s death could
    have been avoided had Officer Anderson been carrying his SPD-mandated stun gun
    and used it, rather than his firearm, to subdue Lyles. Criminal psychologist, Dr. Mark
    Whitehill, opined that Lyles was in a psychotic state during the shooting and did not
    have the capacity to form the intent to assault the Officers. The Officers moved to
    strike these declarations as inadmissible under ER 702 and Frye v. U.S., 
    293 F. 1013
    (D.C. Cir 1923). The trial court granted the Officers’ motion to strike the expert
    4
    The suit also alleged a violation of the Washington Law against Discrimination (WLAD) and violation
    of article I section three of the State Constitution. The trial court granted the Officers’ CR 12(b)(6)
    motion to dismiss the WLAD and constitutional claims and the Estate has not appealed that order.
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    No. 79480-9-I/6
    declarations and granted their summary judgment motion. It denied the Estate’s
    partial summary judgment motion. The Estate appeals all three orders. 5
    ANALYSIS
    Appellate courts review a summary judgment order de novo and perform the
    same inquiry as the trial court. Borton & Sons, Inc. v. Burbank Properties, LLC, 
    196 Wn.2d 199
    , 205, 
    471 P.3d 871
     (2020).             A moving party is entitled to summary
    judgment “if the pleadings, depositions, answers to interrogatories, and admissions
    on file, together with the affidavits, if any, show that there is no genuine issue as to
    any material fact.” CR 56(c). We view all facts and reasonable inferences in the light
    most favorable to the non-moving party. Owen v. Burlington N. Santa Fe R.R. Co.,
    
    153 Wn.2d 780
    , 787, 
    108 P.3d 1220
     (2005).
    Although appellate courts generally review a decision to exclude expert witness
    testimony at trial under an abuse of discretion standard, State v. Arndt, 
    194 Wn.2d 784
    , 798, 
    453 P.3d 696
     (2019), the de novo standard of review applies when reviewing
    trial court evidentiary rulings made in conjunction with a summary judgment motion.
    Folsom v. Burger King, 
    135 Wn.2d 658
    , 663, 
    958 P.2d 301
     (1998). We review a trial
    court’s Frye ruling de novo. Advanced Health Care, Inc. v. Guscott, 
    173 Wn. App. 857
    , 871, 
    295 P.3d 816
     (2013).
    A. Public Duty Doctrine
    The Estate first argues its claims are not barred by the public duty doctrine.
    The Estate alleges the Officers acted unreasonably and violated SPD policy during
    5
    The City has a separate summary judgment motion on file but the trial court has stayed further
    proceedings pending this appeal.
    -6-
    No. 79480-9-I/7
    their encounter with Lyles by failing to use nonlethal force. It contends the police
    officers could have used nonlethal methods, such as a stun gun or a police baton, to
    disarm Lyles or to subdue her without having to shoot her. The core of its case is that
    the Officers unreasonably failed to follow police practices on the use of nonlethal
    weapons calculated to avoid the use of deadly force. We agree that this claim is not
    barred by the public duty doctrine.
    “When the defendant in a negligence action is a governmental entity, the public
    duty doctrine provides that a plaintiff must show the duty breached was owed to him
    or her in particular, and was not the breach of an obligation owed to the public in
    general.” Munich v. Skagit Emergency Comm’n Ctr., 
    175 Wn. 2d 871
    , 878, 
    288 P.3d 328
     (2012). The recent Supreme Court decision in Beltran-Serrano v. City of Tacoma,
    
    193 Wn.2d 537
    , 549, 
    442 P.3d 608
     (2019), is dispositive on the inapplicability of the
    public duty doctrine in this case. In Beltran-Serrano, a Tacoma Police Department
    officer shot a mentally ill homeless man after the officer approached him about
    panhandling in the city. Id. at 540-41. When the man, who did not understand English,
    ran from the officer, she shot him multiple times. Id. Beltran-Serrano brought an
    action for assault, battery, and negligence, arguing that the officer unreasonably
    escalated the situation, resulting in Beltran-Serrano’s death. Id. at 542.
    The City of Tacoma argued the officer owed no duty to Beltran-Serrano under
    the public duty doctrine. Id. at 542. The Supreme Court disagreed, reasoning that
    “every individual owes a duty of reasonable care to refrain from causing foreseeable
    harm in interactions with others. . . . This duty applies in the context of law enforcement
    and encompasses the duty to refrain from directly causing harm to another through
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    No. 79480-9-I/8
    affirmative acts of misfeasance.” Id. at 550. The court held that “Beltran-Serrano's
    negligence claims arise out of Officer Volk's direct interaction with him, not the breach
    of a generalized public duty.” Id. at 551.
    As in Beltran-Serrano, the Estate’s claims arise out of the Officers’ direct
    interaction with Lyles and not the breach of a generalized public duty. The Officers
    argue Beltran-Serrano is factually distinguishable because the police officer in that
    case approached Beltran-Serrano unsolicited, whereas here, Officers Anderson and
    McNew responded to Lyles’s request for police assistance. The Officers suggest the
    holding in Beltran-Serrano was premised on the fact that Beltran-Serrano had enlisted
    no help from Officer Volk. But Beltran-Serrano cannot be read so narrowly. The
    Supreme Court unequivocally held that when a police officer has a direct interaction
    with a plaintiff, that officer has a duty to act with reasonable care. Id. There is nothing
    in the case to suggest that this duty only exists when the direct interaction is the result
    of an unsolicited social contact.
    The Officers further argue that they did not owe Lyles a legal duty of care
    because when they responded to her report of a burglary, she was able to converse
    with them coherently, she suddenly and without provocation attacked them, and the
    Officers had the right under RCW 4.24.420 to respond with force. But this argument
    conflates the concept of whether officers owe a legal duty to exercise reasonable care
    in interacting with others and whether officers are statutorily immune from civil liability
    for using lethal force when defending themselves from an assault.
    While there are factual differences between this case and Beltran-Serrano,
    these differences do not negate the holding of that case: an officer owes a legal duty
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    No. 79480-9-I/9
    to exercise reasonable care when engaging in affirmative conduct toward others,
    whether they be crime victims or individuals suspected of committing crimes. As the
    Supreme Court indicated in Beltran-Serrano, when “harm result[s] from the officer’s
    direct contact with [a] plaintiff[], [and] not the performance of a general public duty of
    policing” the public duty doctrine does not apply. Id. at 551. If the officers act, they
    have a duty to act with reasonable care. Id.
    Here, whether the use of lethal force breached a duty of reasonable care is a
    question for the trier of fact. The Officers may ultimately convince a jury that lethal
    force was the only viable option. But Beltran-Serrano establishes that the public duty
    doctrine does not bar the Estate’s negligence claim.
    B. Felony Defense Statutory Immunity
    The Officers next contend they have complete statutory immunity under
    Washington’s felony defense statute, RCW 4.24.420. Because genuine issues of
    material fact exist regarding the applicability of that statutory immunity, we conclude
    summary judgment was inappropriate.
    RCW 4.24.420 provides:
    It is a complete defense to any action for damages for personal injury or
    wrongful death that the person injured or killed was engaged in the
    commission of a felony at the time of the occurrence causing the injury
    or death and the felony was a proximate cause of the injury or death.
    RCW 4.24.420 requires proof that the person killed was engaged in the commission
    of a felony at the time of her death. The Officers allege that Lyles was engaged in the
    commission of a felony because her conduct constituted first degree assault with a
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    No. 79480-9-I/10
    deadly weapon under RCW 9A.36.011(1) and attempted murder under RCW
    9A.28.020(1) and (3), and RCW 9A.32. 6
    Assault with a deadly weapon requires proof that a person, with the intent to
    inflict great bodily harm, assaulted another with a deadly weapon. RCW 9A.36.011(1);
    11 WASHINGTON PRACTICE: WASHINGTON PATTERN JURY INSTRUCTIONS: CRIMINAL 35.01,
    at 480 (4th ed. 2016) (WPIC). As the Estate correctly notes, the mens rea for first
    degree assault is the specific intent to inflict great bodily harm. State v. Elmi, 
    166 Wn.2d 209
    , 215, 
    207 P.3d 439
     (2009). Attempted murder requires proof of the specific
    intent to cause the death of another person. State v. Boswell, 
    185 Wn. App. 321
    , 335,
    
    340 P.3d 971
     (2014); WPIC 26.01.
    To benefit from complete immunity under RCW 4.24.420, the Officers must
    prove that Lyles formed the specific intent either to inflict great bodily harm or to cause
    death. The Officers argue they have no burden of proving any specific mens rea. We
    disagree. In Davis v. King County, No. 79696-8-I, slip op. at 9-10 (Wash. Ct. App. Feb
    1, 2021), this court concluded that a defendant asserting immunity under RCW
    4.24.420 must prove the party killed formed the intent to commit a felony. In Davis,
    two King County Sheriff’s deputies shot and killed a woman in her home after she
    allegedly pointed an unloaded gun at them. Id. at 4-5. After Davis’s estate brought a
    wrongful death action, the trial court granted summary judgment for the deputies,
    ruling that Davis was engaged in the commission of first degree assault when the
    6
    The Officers do not identify the provision of our homicide statute on which they rely to substantiate
    this assertion. Chapter 9A.32 RCW includes premeditated murder, murder in the first and second
    degree, and manslaughter in the first and second degree. All are felonies but each contains a different
    mens rea, from premeditation and intent, to recklessness and negligence. Because the Officers
    repeatedly use the word “murder,” we assume the Officers are relying on RCW 9A.32.030 (murder in
    the first degree) or RCW 9A.32.050 (murder in the second degree).
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    No. 79480-9-I/11
    deputies killed her and that RCW 4.24.420 barred the Davis’s claims. Id. at 6. This
    court reversed, concluding that specific intent is an essential element of first degree
    assault and Davis’s history of mental illness, the deputies’ conflicting testimonies
    about the placement of the gun, and Davis’s dying statement that the gun was not
    loaded raised a genuine issue of material fact as to whether Davis had formed the
    requisite intent to commit assault. Id. at 9-10. 7
    As in Davis, there is a genuine issue of material fact as to Lyles’ specific intent
    to commit assault with a deadly weapon or attempted murder. A person’s diminished
    capacity, due to a mental illness, may impair her ability to form the specific intent to
    commit a crime. State v. Nuss, 
    52 Wn. App. 735
    , 738, 
    763 P.2d 1249
     (1988).
    Contrary to the Officers’ contention, diminished capacity is not an affirmative defense
    for which a criminally charged defendant bears the burden of proof, but is merely
    evidence that negates specific intent. Id. at 739. See also WPIC 18.20 (Diminished
    Capacity – Defense). 8          Generally, a criminally charged defendant must present
    evidence of a mental disorder and expert testimony must logically and reasonably
    connect the defendant’s alleged mental condition with the asserted inability to form
    the mental state required for the crime charged when the defendant seeks a
    7
    The Officers argue Lyles’s intent is immaterial under RCW 4.24.420, citing Estate of Lee v. City of
    Spokane, 
    101 Wn. App. 158
    , 177, 
    2 P.3d 979
     (2000). But Lee simply states “[i]t is a complete defense
    to any action for damages for wrongful death that the person killed was engaged at the time in the
    commission of a felony and that the felony was a proximate cause of death.” 
    Id.
     Lee contains no
    discussion of whether the aggressor’s mens rea should be considered when adjudicating a defendant’s
    immunity under RCW 4.24.420. Generally, in cases where a legal issue is not discussed in an opinion,
    the case is not controlling on a future case where the legal issue is properly raised. Berschauer/Phillips
    Constr. Co. v. Seattle Sch. Dist. No. 1, 
    124 Wn.2d 816
    , 824, 
    881 P.2d 986
     (1994). Lee does not discuss
    mens rea under RCW 4.24.420 and is not controlling here.
    8
    Diminished capacity is treated as an affirmative defense only to the extent that the defendant carries
    the burden of producing sufficient evidence of diminished capacity to put the defense in issue. State v.
    Carter, 
    31 Wn. App. 572
    , 575, 
    643 P.2d 916
     (1982).
    - 11 -
    No. 79480-9-I/12
    diminished capacity jury instruction. State v. Atsbeha, 
    142 Wn.2d 904
    , 914, 
    16 P.3d 626
     (2001). When a defendant presents such evidence, a court may instruct the jury
    that “[e]vidence of mental illness or disorder may be taken into consideration in
    determining whether the defendant had the capacity to form (fill in requisite mental
    state).”   WPIC 18.20.    Thus, while the Estate may have the burden to produce
    evidence that Lyles suffered from a mental illness that diminished her capacity to form
    the requisite specific intent, the ultimate burden of proving each element of the alleged
    felonies remains with the Officers.
    If a jury were to find, as the Estate contends, that Lyles suffered from a mental
    disorder that rendered her unable to form the mens rea of a felony, then the jury could
    conclude the Officers failed to prove she was engaged in the “commission of a felony”
    and they would not be entitled to statutory immunity under RCW 4.24.420.
    Here, the Officers presented prima facie evidence that Lyles committed at least
    felony assault. They both testified she lunged at them with a knife while making
    threatening statements. Although the Officers may have no direct evidence of Lyles’s
    intent, a jury may infer it from this circumstantial evidence. “A jury may infer criminal
    intent from a defendant’s conduct where it is plainly indicated as a matter of logical
    probability. This includes inferring or permissively presuming that a defendant intends
    the natural and probable consequences of his or her acts.” State v. Bea, 
    162 Wn. App. 570
    , 579, 
    254 P.3d 948
     (2011) (citations omitted).
    The Estate, however, presented evidence that Lyles was suffering from a
    psychosis at the time of the shooting that impaired her ability to form this mens rea.
    The police reports of the June 5, 2017 incident describe Lyles as disoriented,
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    No. 79480-9-I/13
    delusional, experiencing hallucinations, and exhibiting impaired judgment.                     The
    Officers testified that Lyles’s conduct swung rapidly from coherent to aggressive
    without warning on June 18.           Dr. Whitehill testified that Lyles had a history of
    depression, post-traumatic stress disorder, adjustment disorder and an anxiety
    disorder, as well as a history of decompensation and emerging psychosis.
    Dr. Whitehill concluded from his review of the records that “she was in a psychotic
    state and did not have the capacity to intend to assault [the Officers] when she
    encountered police on June 18, 2017.”
    The Estate contends the trial court erred in excluding Dr. Whitehill’s declaration.
    We agree. First, evidence of Lyles’s mens rea is relevant under RCW 4.24.420. The
    Officers must prove each element of the alleged felony, including intent, and evidence
    of Lyles’s incapacity to form intent to commit felonious assault or attempted murder at
    the time of her shooting relates directly to an element of proof under RCW 4.24.420.
    Second, the testimony is admissible under Frye.                   The Officers contend
    Dr. Whitehill’s methodology, termed a “psychological autopsy,” is not generally
    accepted in Washington.           But there is nothing in the record to establish that
    Dr. Whitehill’s “psychological autopsy” methodology is unsound. Dr. Whitehill testified
    that a psychological autopsy “is an established practice within the field of forensic
    psychology to determine the mental state of someone who is already deceased.” The
    Officers presented no evidence to contradict this testimony. 9
    9
    Other state courts have also approved of the methodology, finding no distinction between
    psychological autopsies and psychiatric opinion evidence in general. See Jackson v. State, 
    553 So.2d 719
     (Fla. Dist. Ct. App. 1989).
    - 13 -
    No. 79480-9-I/14
    Finally, the Officers argue Dr. Whitehill’s testimony is inadmissible because he
    did not treat, evaluate, or test Lyles, citing to State v. Johnson, 
    150 Wn. App. 663
    , 
    208 P.3d 1265
     (2009). But Johnson does not support this argument. In that case, a
    defendant argued fetal alcohol spectrum disorder (FASD) impaired his ability to tell
    right from wrong. The trial court allowed a defense expert to testify in general as to
    how FASD generally impairs a sufferer’s cognitive functioning but would not permit
    the expert to testify that Johnson’s FASD precluded him from being able to tell right
    from wrong. The Supreme Court affirmed because the expert testified he had no
    knowledge as to how the defendant was affected by FASD and trial counsel told the
    court the expert would not offer such opinions. Id. at 676-77. The Supreme Court did
    not hold that an expert cannot opine on an individual’s mental state unless he has
    personally examined that individual.
    Fundamentally, the Officers’ arguments about Dr. Whitehill’s opinions go to the
    weight, and not the admissibility, of his testimony.                 Such considerations are not
    dispositive on admissibility under ER 702 or Frye. 10 See Pub. Util. Dist. No. 2 of Pac.
    County v. Comcast of Wash. IV, Inc., 8 Wn. App. 2d 418, 446, 
    438 P.3d 1212
     (2019)
    (the credibility of expert witness testimony is best determined by the trier of fact). The
    trial court thus improperly excluded Dr. Whitehill’s declaration.
    The evidence of Lyles’s psychological condition on the day of her death creates
    a genuine issue of material fact as to whether she had the capacity to form the
    10
    At oral argument, the Officers further argued that the trial court appropriately excluded Dr. Whitehill’s
    testimony because, as a Ph.D. and not an M.D., he was not qualified to give such an opinion. Dr.
    Whitehill’s testimony, however, was not a medical opinion, but a psychological one. Furthermore, an
    attack on the academic degree held by a testifying expert assails the weight afforded the testimony,
    not its admissibility. State v. Weaville, 
    162 Wn. App. 801
    , 824-25, 
    256 P.3d 426
     (2011).
    - 14 -
    No. 79480-9-I/15
    requisite intent to commit felony assault or attempted murder, and the trial court erred
    in granting summary judgment on this issue.
    C. Qualified Immunity
    The Estate next argues it was entitled to summary judgment on the Officers’
    affirmative defense of qualified immunity. We disagree.
    In a negligence action, an officer is entitled to qualified immunity when he or
    she (1) was carrying out a statutory duty, (2) according to procedures dictated to him
    by statute and superiors, and (3) acted reasonably. Staats v. Brown, 
    139 Wn.2d 757
    ,
    778, 
    991 P.2d 615
     (2000). The first Brown factor presents a question of law, while the
    second and third factors necessarily introduce a factual inquiry into the qualified
    immunity analysis under state law. See Lesley v. Dept. of Soc. & Health Servs., 
    83 Wn. App. 263
    , 275, 
    921 P.2d 1066
     (1996) (summary judgment on qualified immunity
    reversed because questions of fact existed as to whether caseworker followed proper
    procedures in removing child from parental custody).
    We conclude there are genuine questions of material fact as to whether Officer
    Anderson followed the proper procedures in responding to Lyles’s actions and
    whether both officers acted reasonably in using lethal force against her.
    The Estate first contends neither officer was carrying out a statutory duty when
    they responded to Lyle’s report of a burglary. This is legally incorrect. Under RCW
    10.93.070, police officers have the statutory authority to enforce state criminal laws.
    Responding to a 911 report of a possible crime is the execution of a police officer’s
    statutory duties. The officers were in Lyles’s apartment at her invitation and with her
    - 15 -
    No. 79480-9-I/16
    consent. As a matter of law, they were carrying out a statutory duty when they
    interacted with her.
    Next, the Estate argues that Officer Anderson violated SPD’s stun gun policy
    by failing to carry his stun gun on patrol. This fact is undisputed. SPD policies
    mandate that any officer who has been trained and certified to carry a stun gun must
    do so during their shift. But that policy does not mandate that an officer use a stun
    gun when attacked by a knife-wielding subject, only that the stun gun be carried with
    them when on duty. If Officer Anderson had been carrying his stun gun at the time of
    the shooting, there remains a question of fact as to whether its use would have been
    appropriate under the circumstances. The Estate expert, D.B. Van Blaricom, testified
    a stun gun would have been appropriate as a nonlethal device to subdue Lyles. Jeff
    Noble, the Officers’ police practices expert, testified that Lyles was such a short
    distance away from Officer Anderson that even had he deployed the stun gun, it would
    have been ineffective and would have put Anderson at risk of death or serious bodily
    injury. Noble testified that “a reasonable officer under the circumstances would not
    have drawn or attempted to use the Taser,” because the stun gun has a low
    effectiveness rate, Lyles was wearing a heavy coat, and Officer Anderson was too
    close to her to ensure its efficacy
    The Estate also maintains that both officers violated SPD use of force policies
    by not choosing less lethal methods of subduing Lyles, a small woman at 5’ 3” and
    weighing just 100 pounds. SPD’s use of force policies require that officers use only
    the degree of force that is objectively reasonable, necessary, and proportional to the
    threat of a subject and officers must use de-escalation tactics when circumstances
    - 16 -
    No. 79480-9-I/17
    permit. Under Seattle Municipal Code § 3.28.115, a police officer is authorized to
    discharge a firearm at another person “when necessary to . . . [d]efend himself or
    another person from death or serious bodily injury.” Under that same provision of the
    city code, “[a] police officer may not use a firearm unless all other reasonable
    alternatives have been exhausted or would appear to a reasonable police officer to be
    ineffective under the particular circumstances.”
    But there are genuine issues of material fact as to whether the Officers followed
    SPD use of force policies or Seattle code provisions regarding the discharge of a
    firearm.   Noble opined that the Officers’ use of deadly force was objectively
    reasonable, necessary, and proportional to Lyles’ lethal threats. The Estate’s experts,
    Maureillo and Van Blaircom, opined that the Officers did not act reasonably in using
    lethal force against Lyles, and the Officers had non-lethal options available to them,
    including stun guns or batons. Mauriello further testified using a firearm was also
    unreasonable due to the risk of hitting Lyles’ children who were in close proximity.
    The Estate contends the trial court erred in striking the declarations of Mauriello
    and Van Blaricom. We agree. First, the testimony of these experts addresses the
    reasonability of the Officers’ conduct in their interaction with Lyles, an issue relevant
    to the application of the Officers’ qualified immunity defense.
    Second, the expert opinions are admissible under both ER 702 and Frye. The
    Officers argue that the Estate’s experts did not properly account for the factors
    defining the reasonability of a law enforcement officer’s use of force, as laid out in
    - 17 -
    No. 79480-9-I/18
    Graham v. Connor, 
    490 U.S. 386
    , 
    109 S. Ct. 1865
    , 
    104 L. Ed. 2d 443
     (1989). 11 But
    neither Mauriello nor Van Blaricom relied on an incorrect legal standard. Mauriello
    based his opinions on the following standard:
    The reasonableness of a particular use of force is based on the totality
    of circumstances known by the officer at the time of the use of force and
    weighs the actions of the officer against the rights of the subject, in light
    of the circumstances surrounding the event. It must be judged from the
    perspective of a reasonable officer on the scene, rather than with the
    20/20 vision of hindsight.
    As the Officers concede on appeal, “Mauriello’s declaration relies upon the Graham
    standard.” They argue, however, that despite laying out this correct standard, he then
    “expresses an opinion that does not account for the Graham factors and violates the
    prohibition against assessing the reasonableness of force with the 20/20 vision of
    hindsight.” This argument, however, does not challenge the legal standard Mauriello
    applied.    It is instead an attack on the credibility of his conclusions.                   A mere
    disagreement with an expert’s conclusions, based on methods generally accepted in
    the relevant community, does not render expert witness evidence inadmissible under
    ER 702. Reese v. Stroh, 
    74 Wn. App. 550
    , 560, 
    874 P.2d 200
     (1994).
    As for Van Blaricom’s testimony, the Officers contend he incorrectly relied on
    the standard applicable to claims of professional negligence, rather than Graham. But
    Van Blaricom, like Mauriello, set out the same Graham standard for determining the
    reasonableness of a police officer’s use of force.                Van Blaricom, like Mauriello,
    concluded that the actions of the Officers “were unreasonable.” Van Blaricom also
    11
    The Graham standard relates to the reasonableness of a police officer’s use of force under the Fourth
    Amendment in cases arising under 
    42 U.S.C. § 1983
    . Under federal constitutional jurisprudence, the
    reasonableness of an officer’s use of force is whether the officer’s actions are objectively reasonable
    in light of the facts and circumstances confronting them, without regard to their underlying intent or
    motivation. Graham, 
    490 U.S. at 397
    .
    - 18 -
    No. 79480-9-I/19
    opined that the Officers “failed to exercise the degree of skill, care, diligence and
    learning that would be expected of a reasonable police officer in the State of
    Washington under the same or similar circumstances.”           But this opinion was in
    addition to his Graham analysis and was appropriate under the negligence standard
    set out in Beltran-Serrano, 193 Wn.2d at 550. Thus, the trial court erred in striking the
    Mauiello and Van Blaricom declarations.
    The expert testimony here creates genuine issues of material fact as to whether
    the Officers are entitled to qualified immunity and the trial court did not err in denying
    the Estate’s summary judgment motion on this issue.
    D. Assumption of Risk
    The Estate also argues the Officers’ assumption of risk affirmative defense
    should have been dismissed because there is no evidence that Lyles assumed the
    risk of being killed by Officers Anderson and McNew and the trial court erred in
    denying summary judgment on the issue. We disagree.
    Washington courts recognize four categories of assumption of risk: express,
    implied primary, implied unreasonable, and implied reasonable assumption of risk.
    Gregoire v. City of Oak Harbor, 
    170 Wn.2d 628
    , 636, 
    244 P.3d 924
     (2010). Only the
    first two serve as an absolute defense; the latter two only serve as damage-reducing
    factors. 
    Id.
     The parties agree that only implied primary assumption of risk applies to
    this case. To establish this affirmative defense, the Officers must prove that Lyles “(1)
    had full subjective understanding (2) of the presence and nature of the specific risk,
    and (3) voluntarily chose to encounter the risk.” 
    Id.
    - 19 -
    No. 79480-9-I/20
    The Officers presented evidence that Lyles had extensive history with the
    police, having called for their assistance some 23 times in the recent past. There is
    evidence she had previously threatened police officers in her apartment and had
    acknowledged, when they drew their firearms, that she might be shot for doing so.
    There is evidence she appeared to have intentionally armed herself with not one but
    two knives the day the Officers responded to her 911 call and she intentionally lunged
    at them, knowing the officers had their weapons drawn. A reasonable jury could find
    from this evidence that Lyles subjectively understood attempting to stab armed police
    officers with a knife carried a significant risk of being shot and voluntarily chose to
    encounter that risk.
    But the Estate has presented evidence that Lyles was in a psychotic state and
    incapable of fully understanding the presence and nature of the risk posed by
    threatening Officer Anderson and McNew with a knife. Lyles’s delusional statements
    and bizarre behavior may indicate that she did not fully appreciate the threat posed
    by the officers during that encounter. Dr. Whitehill testified Lyles’s mental illness
    precluded her from voluntarily assuming the risk of her conduct.
    Given this evidence, there are genuine issues of material fact and the trial court
    did not err in denying summary judgment on the issue of assumption of risk.
    E. Discretionary Immunity
    The Estate contends the trial court erred in refusing to dismiss the City’s
    affirmative defense of discretionary immunity because it does not challenge any
    discretionary policy decision made by a high-level executive within the City. The City
    argues the Estate’s position on appeal is new and was not the argument it advanced
    - 20 -
    No. 79480-9-I/21
    before the trial court. We conclude the Estate did raise this argument below and the
    trial court erred in refusing to dismiss the City’s affirmative defense. 12
    In its answer to the third amended complaint, the City pleaded the following
    affirmative defense: “Plaintiffs’ claims may be barred in whole, or in part, by
    governmental immunity for discretionary, policy making, and/or judgmental functions
    and decisions.” A governmental entity is entitled to immunity for “discretionary acts at
    a basic policy level.” Chambers-Castanes v. King County, 
    100 Wn.2d 275
    , 282, 
    669 P.2d 451
     (1983). “To fall within this exception, however, the discretionary act must
    not only involve a basic policy determination, but must also be the product of a
    considered policy decision.” 
    Id.
    The Estate moved to dismiss this defense because “Defendant has failed to
    provide any evidence in support of this claim.” In response, the City argued the Estate
    made various allegations about City policies and basic policy decisions and when it
    tried to determine which policies the Estate was challenging, the Estate would not
    identify them. In fact, the Estate represented during a discovery conference that it
    was not challenging any policies or procedures. The Estate argued in reply that “[the]
    City offers no evidence of high-level officials making considered policy decisions
    relevant here. There is no evidence in the record to support an Evangelical/King
    analysis,” citing Evangelical United Brethren Church of Adna v. State, 
    67 Wn.2d 246
    ,
    
    407 P. 2d 440
     (1965) and Chambers-Castanes, 
    100 Wn.2d at 275
    . The Estate’s
    briefing before the trial court and the evidence the City presented—that the Estate
    12
    The City indicated below that the Officers have not separately asserted a discretionary immunity
    defense.
    - 21 -
    No. 79480-9-I/22
    was not challenging any City policy decision—demonstrates that the Estate’s
    argument on appeal is not new. It is indeed the same argument advanced below.
    Given that the Estate has disavowed any challenge to City policies, the
    discretionary immunity defense is inapplicable and should have been dismissed. 13
    CONCLUSION
    We reverse the summary judgment dismissal of the Estate’s claims against the
    Officers because there are genuine issues of material fact on the Officers’ affirmative
    defense under RCW 4.24.420. We affirm the trial court’s denial of summary judgment
    as to the Officers’ qualified immunity and assumption of risks defenses. We reverse
    the order denying the Estate’s motion to dismiss the City’s discretionary immunity
    defense. We remand for further proceedings consistent with this opinion.
    WE CONCUR:
    13
    This conclusion is further supported by our Supreme Court’s recent decision in Mancini v. City of
    Tacoma, No. 97583, slip op. at 23 (Wash. Jan. 28, 2021), holding that the doctrine of discretionary
    immunity has no bearing on cases that do not involve policy decisions made by a coordinate branch of
    government.
    - 22 -