dual-role-testimony

2 cases — ← All topics

Case Title Lower Court Docketed Status Flags Tags Question Presented
25-6125 Sylvia Olivas, aka Sylvia Lee Gavaldon v. United States Ninth Circuit 2025-11-14 Denied Response WaivedIFP dual-role-testimony evidence-admissibility expert-witness gatekeeping-role rule-403 rule-702 A witness who testifies as a lay witness offering either factual testimony and/or lay opinion testimony and also testifies as an expert offering exper…
23-5524 Michael Jones, Jason Reed, and Shaun Myers v. United States Seventh Circuit 2023-09-06 Denied Response WaivedIFP burden-of-proof daubert daubert-standard dual-role-testimony due-process evidence expert-witness fifth-amendment standard-of-review Whether the Seventh Circuit applied the wrong standard of review and erroneously shifted the burden of proof by failing to review the Daubert error de…