51 F.4th 1200
10th Cir.2022Background
- Night-time collision at Thunder Basin Mine between two 27-foot-wide haul trucks driven by Vincent (plaintiff) and Nelson (defendant); dispute centers on exact crash location (the narrow straight "narrows" vs. a wider curve) because Wyoming law immunizes non-willful conduct.
- Mine supervisors McGinty and Steele investigated immediately, measured the road by "stepping off" ~75–80 feet, concluded Nelson was at fault, and lost her job; Vincent sued years later claiming serious injuries and sought ~$3M.
- Key evidence: an aerial photograph of the pit taken ~3 weeks before the accident (disclosed a year before trial) and MineStar GPS gateway files showing truck coordinates; the Mine did not archive the historical digital mine model for the accident date.
- At trial McGinty and Steele (designated non-retained experts) used the Aerial Photo to locate the crash; Brandon Opfer (MineStar supervisor) later superimposed MineStar GPS data onto the Aerial Photo mid-trial and testified about that mapping.
- Vincent’s pretrial motion to compel information about Arch Coal/Thunder Basin Coal’s indemnity/insurance was denied under Rule 403 concerns; after a jury verdict for Nelson Vincent moved for a new trial, attaching a late GPS expert affidavit (Cotton) which the court struck as untimely.
- The district court admitted the challenged testimony and exhibits; denied the motion to compel indemnity/insurance disclosure; struck the Cotton affidavit; Vincent appealed and the Tenth Circuit affirmed.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Admission of McGinty/Steele testimony using Aerial Photo | Vincent: supervisors exceeded non-retained expert disclosures and their Aerial Photo testimony was undisclosed expert evidence requiring more disclosure | Nelson: that testimony was lay or, alternatively, within their Rule 26(a)(2)(C) designations and relied on their firsthand investigation | Court: testimony was properly lay (or within non-retained designations); admission not abusive under discretion or Smith factors |
| Admission of Opfer's testimony applying MineStar GPS to Aerial Photo | Vincent: Opfer’s mapping transformed him into a retained expert requiring a Rule 26(a)(2)(B) report and exceeded his deposition/designation; admission was prejudicial/surprising | Nelson: Opfer was designated to testify about MineStar and its application; superimposing GPS on the Photo fell within that subject matter and used disclosed data | Court: Opfer’s testimony was within his designation; not inconsistent with deposition; no unfair surprise or prejudice under Smith; admission proper |
| Denial of motion to compel Mine/parent company financial/indemnity info | Vincent: evidence of Thunder Basin/Arch Coal financial interest and indemnity is relevant to witness bias/motive and should be discoverable/admissible | Nelson: Mine is non-party; indemnity/insurance evidence risks jury confusion and is of limited probative value; Rule 403 bars admission | Court: district court did not abuse its Rule 403 discretion in excluding indemnity/insurance evidence as confusing and prejudicial |
| Striking Cotton affidavit submitted with new-trial reply brief | Vincent: Cotton affidavit rebuts Opfer and was permissible with a reply; district court abused discretion by striking it | Nelson: affidavit was untimely and should have been filed with the initial new-trial motion; court may refuse late affidavits | Court: Rule 59(c) requires affidavits supporting a new-trial motion be filed with the motion; district court permissibly exercised discretion to strike the late affidavit |
Key Cases Cited
- Prager v. Campbell Cnty. Mem'l Hosp., 731 F.3d 1046 (10th Cir. 2013) (standard of review for admission/exclusion of evidence; deference to district court)
- Smith v. Ford Motor Co., 626 F.2d 784 (10th Cir. 1980) (factors for admitting testimony not specified in pretrial order and evaluating surprise/prejudice)
- Jacobsen v. Deseret Book Co., 287 F.3d 936 (10th Cir. 2002) (purpose of Rule 26(a)(2) expert disclosures to allow effective cross-examination and preparation)
- United States v. Caballero, 277 F.3d 1235 (10th Cir. 2002) (distinction between lay and expert testimony focuses on nature of testimony, not the witness)
- United States v. Kearn, 863 F.3d 1299 (10th Cir. 2017) (law-enforcement officers’ testimony held to be lay where it did not go beyond common experience)
- James River Ins. Co. v. Rapid Funding, LLC, 658 F.3d 1207 (10th Cir. 2011) (recognizing testimony that remains within common experience qualifies as lay opinion)