Scott v. City of Tulsa, Oklahoma

District Court, N.D. Oklahoma·Decided July 11, 2025·No. 4:17-cv-00400·Unknown

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE NORTHERN DISTRICT OF OKLAHOMA

MALCOLM NIGEL SCOTT, et al.,

Plaintiffs, Case No. 4:17-CV-400-GAG-CDL v.

CITY OF TULSA, OKLAHOMA, et al.,

Defendants.

OPINION AND ORDER

GUSTAVO A. GELPÍ, Circuit Judge.1 Before this Court are two motions: (1) Plaintiffs Malcolm Scott (“Plaintiff Scott”) and De’Marchoe Carpenter’s (“Plaintiff Carpenter,” collectively, “Plaintiffs”) motion to exclude certain opinions of John Ryan (“Ryan”), the proffered expert witness for Defendants City of Tulsa, Oklahoma (“Defendant Tulsa”), Gary Meek (“Defendant Meek”), and Randall Solomon (“Defendant Solomon,” collectively, “Defendants”), (Dkt. No. 315, “Plaintiffs’ Motion”); and (2) Defendants’ motion to exclude certain opinions of Plaintiffs’ expert Joseph Allio (“Allio”), (Dkt. No. 316, “Defendants’ Motion”). For the reasons discussed below, this Court GRANTS IN PART AND DENIES IN PART Plaintiffs’ Motion and DENIES Defendants’ Motion. I. BACKGROUND As this Court recently observed, “[t]his case arises from Plaintiffs[’] . . . convictions—and decades-long imprisonment—for a crime they did not commit: a drive-by shooting on

1 The Honorable Gustavo A. Gelpí, Circuit Judge, United States Court of Appeals for the First Circuit, sitting by designation. September 10, 1994.” (Dkt. No. 302 at 1-2.)2 After their exoneration, Plaintiffs filed this lawsuit in July 2017, alleging claims under 42 U.S.C. § 1983 and Oklahoma state law against (among others) Defendants Tulsa, Meek, and Solomon. (Dkt. No. 2.) Following discovery, Defendants separately moved for summary judgment and jointly moved to exclude certain opinions of

Plaintiffs’ expert witness Allio. (Dkt. Nos. 268, 270-72.) On the same day, Plaintiffs moved to exclude certain opinions of Defendants’ expert witness Ryan. (Dkt. No. 269.) On March 31, 2025, this Court granted in part and denied in part Defendants’ motions for summary judgment, leaving intact the following claims: (1) Plaintiffs’ Monell claim against Defendant Tulsa based solely on the “single-incident failure-to-train” theory of municipal liability; (2) Plaintiffs’ Brady claims against Defendant Meek based solely on his threatening others to fabricate their statements; (3) Plaintiffs’ substantive due process claims against Defendant Meek based solely on his fabricating evidence; and (4) Plaintiffs’ substantive due process claim against Defendant Solomon based solely on inaccuracies in his reporting. (Dkt. No. 302 at 26-27.) At the same time, this Court denied without prejudice the dueling motions to exclude expert testimony,

allowing the parties to renew those motions after they had accounted for this Court’s summary judgment ruling. (Id. at 27.) Both parties so renewed the motions on May 30, 2025. (Dkt. Nos. 315, 316.) And both parties timely briefed the motions. (Dkt. Nos. 319, 320, 324, 325.) II. STANDARD Federal Rule of Evidence (“Rule”) 702 is the starting point for a court considering a motion to exclude expert testimony. It states:

2 This Court incorporates by reference the background facts set forth in the Opinion and Order issued on March 31, 2025. (Id. at 1-8.) A witness who is qualified as an expert by knowledge, skill, experience, training, or education may testify in the form of an opinion or otherwise if the proponent demonstrates to the court that it is more likely than not that: (a) the expert’s scientific, technical, or other specialized knowledge will help the trier of fact to understand the evidence or to determine a fact in issue;

(b) the testimony is based on sufficient facts or data;

(c) the testimony is the product of reliable principles and methods; and

(d) the expert’s opinion reflects a reliable application of the principles and methods to the facts of the case.

Fed. R. Evid. 702. The Supreme Court and Tenth Circuit have construed this Rule as imposing upon district courts “a gatekeeping function . . . to ensure expert testimony is admitted only if it is relevant and reliable.” Etherton v. Owners Ins. Co., 829 F.3d 1209, 1217 (10th Cir. 2016); see also Kumho Tire Co., Ltd. v. Carmichael, 526 U.S. 137, 147 (1999).3 A district court enjoys “broad discretion” in determining the admissibility of expert testimony. Taylor v. Cooper Tire & Rubber Co., 130 F.3d 1395, 1397 (10th Cir. 1997). But “rejection of expert testimony is the exception rather than the rule.” Fed. R. Evid. 702 advisory committee’s note to 2000 amendment. For “[m]ost expert reports are simply disclosure tools, not the script by which an expert will testify at trial.” Clifton v. State Farm Mut. Auto. Ins., No. 18-01231, 2021 WL 1100403, at *2 (D. Colo. Mar. 23, 2021). III. DISCUSSION This Court first examines Plaintiffs’ Motion before turning to Defendants’ Motion.

3 Although Rule 702 was amended in December 2023, neither party contends that the 2023 amendments render inapposite the pre-2023-amendment precedent relevant to this case. Indeed, both parties rely heavily on pre-2023-amendment case law. A. Plaintiffs’ Motion to Exclude Defendants’ Expert Ryan Defendants offer Ryan as an expert witness to testify on “the reasonableness of the City’s training[ and] the remaining Monell claim against the City, and to rebut Plaintiffs’ police practices expert Joseph Allio.” (Dkt. No. 320 at 1.) Plaintiffs argue that Ryan’s opinions should be excluded

because he (1) “opines on the law” and what “legal mandates” applied to Defendants’ investigation, (Dkt. No. 315 at 3-5); (2) encroaches on the jury’s role of assessing facts and evidence, determining witness credibility, and applying the law to facts, (id. at 5-8); and (3) makes assertions about officers’ training which are neither reliable nor relevant, (id. at 8-9). This Court examines Plaintiffs’ arguments in turn.4 1. Opinions Challenged as Improper Legal Conclusions

Plaintiffs move to exclude Ryan’s testimony on the grounds that he “opines on the law” and “legal mandates” in paragraphs 489 through 494, 496, 498, 499, 502, 514, and 521 in his report. (Id. at 3-4.) In response, Defendants contend that Ryan will “not testify to the ultimate issue, but rather [will] discuss[] generally accepted law enforcement practices, including how the law directs those practices.” (Dkt. No. 320 at 4.) Plaintiffs’ arguments are well-founded to some extent; however, at this stage, it is too early to bar wholesale Ryan from testifying about how the law and so-called legal mandates informed training practices. Rule 704 “allows an expert witness to testify about an ultimate question of fact.” United States v. Richter, 796 F.3d 1173, 1195 (10th Cir. 2015). But, “[t]o be admissible, an expert's testimony must be helpful to the trier of fact.” Id. That command prohibits an expert from “stat[ing] legal conclusions drawn by applying the law to the facts.” Id. (quoting United States v. Bedford, 536 F.3d 1148, 1158 (10th Cir. 2008)). And yet, an expert still “may refer to the law in

4 Because Plaintiffs do not challenge Ryan’s qualifications, this Court need not address them.

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Scott v. City of Tulsa, Oklahoma, (N.D. Okla. 2025).

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