United States v. Chapman
839 F.3d 1232
10th Cir.2016Background
- Chapman and his then-wife D.V. had a physical altercation in VA housing in Albuquerque; both accused the other of being the aggressor.
- Photographs taken immediately after showed no chest scratches on D.V.; photos taken four hours later showed obvious scratches, and D.V. initially told police Chapman scratched her but later acknowledged she may have caused them herself.
- The United States charged Chapman under the Assimilative Crimes Act (ACA) with New Mexico aggravated battery on a household member (and another misdemeanor later dismissed); a jury convicted him of aggravated battery.
- Government disclosed nine days before trial it would call Gail Starr, a certified sexual assault nurse examiner, to testify that self-injury can be a one-time coping response to trauma and that D.V.’s scratching was consistent with that phenomenon.
- The district court allowed Starr to testify (with limits), after a Daubert-style proffer and a continuance; Starr testified she had not examined D.V. but that the scratching was consistent with trauma-related self-injury and could be a coping mechanism; she did not opine on who was the aggressor.
- At sentencing the court applied New Mexico law under the ACA to set probation (state maximum) and fine limits rather than the broader federal maxima; Chapman was sentenced to state-law limits (noting parties misreported state probation max at sentencing).
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Admissibility of Nurse Starr’s expert testimony under Rule 702/Daubert | Gov: Starr’s specialized experience supports testimony that self-injury can be a trauma-coping mechanism and is relevant to why D.V. scratched herself | Chapman: Starr’s opinion was unreliable because she never evaluated D.V.; testimony improperly bolstered witness credibility and should be excluded | Court: Admitted testimony — Starr qualified; opinion based on reliable methods and literature; relevant to material issue (why scratches appeared); limited so it did not vouch for credibility or decide ultimate issue |
| Rule 403 balancing (prejudice vs probative value) | Gov: Testimony probative to disputed question of aggressor and motive for scratches | Chapman: Probative value substantially outweighed by unfair prejudice and jury confusion (impermissible bolstering) | Court: No abuse of discretion — probative value significant; jury instruction mitigated prejudice; acquittal on one count suggested no undue prejudice |
| Sufficiency of district court’s Daubert gatekeeping when expert unavailable at pretrial hearing | Gov: Proffer and later live testimony suffice given late notice; continuance afforded defense | Chapman: Court erred by ruling admissible without hearing Starr live for cross-examination | Held: No abuse — hearing on proffer plus continuance adequate; Starr’s trial testimony matched proffer and defense could have further challenged but did not |
| Sentencing under the ACA — whether federal or state law sets probation/fine ranges | Gov: §3551(a) and federal sentencing policy require using federal classifications to set probation/fine ranges even though imprisonment range comes from state law | Chapman: ACA requires punishment “like” state law; probation and fines are punishments so state limits apply | Court: Affirmed use of state law for probation and fines — ACA’s “like punishment” requires looking to state law for available punishments; no federal policy identified that conflicts with applying state limits |
Key Cases Cited
- Daubert v. Merrell Dow Pharm., 509 U.S. 579 (gatekeeping standard for expert testimony)
- Kumho Tire Co. v. Carmichael, 526 U.S. 137 (Daubert applies to all expert testimony)
- United States v. Garcia, 893 F.2d 250 (ACA sentencing: state sets imprisonment range; federal guidelines applied within that range)
- United States v. Charley, 189 F.3d 1251 (limits on expert testimony regarding witness credibility, admissibility in child-abuse context)
- United States v. Nacchio, 555 F.3d 1234 (expert latitude to rely on case facts and non-firsthand data)
- United States v. Medina-Copete, 757 F.3d 1092 (standard of review for Rule 702 admissibility decisions)
- United States v. Tenorio, 809 F.3d 1126 (district court’s discretion in Rule 403 balancing)
- United States v. Rodella, 804 F.3d 1317 (definition and examples of unfair prejudice under Rule 403)
- United States v. Leonard, 439 F.3d 648 (no Rule 403 error where jury convicts on some charges but not others)
- United States v. Gaskell, 134 F.3d 1039 (Eleventh Circuit decision discussing when federal probation limits might exceed state maxima under ACA; contrasted and not followed)