Patel v. City of Madison, Alabama, 5:15-cv-00253

Background

Plaintiff Sureshbhai Patel sued the City of Madison and Officer Eric Parker under 42 U.S.C. § 1983 and state-law claims, alleging an unlawful stop, search, and an excessive-force takedown on Feb. 6, 2015 that injured him.
Patel retained two experts: Dr. Jeremy R. Cummings (biomechanics/forensic video analysis) and Jerry Wiley (law-enforcement/use-of-force practices). Both submitted reports and were deposed.
Defendants moved to exclude both experts under Fed. R. Evid. 702 and Daubert-related authority, arguing lack of qualification, unreliable methodology, impermissible legal conclusions, and that opinions would not assist the jury.
For Cummings, the court focused on his photogrammetry/video-analysis methods using COBAN in-car video, lack of forensic video training/certification, failure to account for video interlacing and encoding issues, and reliance on calculations from the video.
For Wiley, the court focused on limited and outdated formal training specific to modern use-of-force standards, unreliable methodology, statements invading the court/jury’s legal role, and many lay-style opinions that merely interpret video footage.
The court held evidentiary hearings unnecessary, functioned as gatekeeper under Rule 702/Daubert, and excluded both experts from consideration at summary judgment and trial.

Issues

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether Dr. Cummings is qualified to perform forensic video photogrammetry and biomechanical velocity/torque analysis	Cummings is a qualified biomedical engineer/biomechanic whose photogrammetry and biomechanics expertise supports his calculations and injury opinions	Cummings lacks forensic video training/certification, misunderstood COBAN video encoding/interlacing, and relied on unsupported methods and unpublished techniques	Excluded: not qualified for the video/photogrammetry work; methodology unreliable and not helpful to jury
Whether Cummings’s calculations/opinions are reliable under Daubert factors	Calculations are based on video and medical records; challenges go to weight, not admissibility	Calculations suffer from interlaced/compressed video artifacts, improper deinterlacing, measurement placement error, high error rates, and reliance on non-peer-reviewed sources	Excluded: methodology unreliable; underlying calculations central to his opinions and therefore excluded
Whether Jerry Wiley is qualified to opine on prevailing law-enforcement use-of-force standards	Wiley’s decades in policing and command-level experience qualify him to provide context and standard-of-practice opinions	Wiley lacks recent/formal training on use-of-force standards, limited familiarity with key legal authorities and model practices, and insufficient demonstrated expertise	Excluded: not qualified as a use-of-force expert; deficiencies go beyond weight to admissibility
Whether Wiley’s opinions improperly state legal conclusions or provide lay observations the jury can reach	Wiley provides context and applies training/experience to interpret officers’ conduct and statements on video	Wiley’s report contains legal conclusions (e.g., Fourth Amendment violation) and lay inferences about what the video shows that jurors can decide	Excluded: legal conclusions invade the court’s role; lay-style opinions unhelpful and unreliable

Key Cases Cited

Daubert v. Merrell Dow Pharm., 509 U.S. 579 (gatekeeping function; admissibility of expert testimony under Rule 702)
Gen. Elec. Co. v. Joiner, 522 U.S. 136 (abuse-of-discretion review of Daubert rulings)
Kumho Tire Co. v. Carmichael, 526 U.S. 137 (Daubert gatekeeping applies to non-scientific expert testimony)
Frazier v. Sec'y, Dep't of Veterans Affairs, 387 F.3d 1244 (11th Cir.) (framework for evaluating expert admissibility; helpfulness and reliability)
Tampa Bay Water v. HDR Eng'g, Inc., 731 F.3d 1171 (11th Cir.) (three-part Rule 702 test: qualifications, reliability, helpfulness)
Cook ex rel. Estate of Tessier v. Sheriff of Monroe Cty., Fla., 402 F.3d 1092 (11th Cir.) (proponent bears burden to show admissibility by preponderance)
Allison v. McGhan Med. Corp., 184 F.3d 1300 (11th Cir.) (expert admissibility burden and required foundation)
Quiet Tech. DC–8, Inc. v. Hurel–Dubois UK Ltd., 326 F.3d 1333 (11th Cir.) (factors for assessing reliability)