210 A.3d 800
D.C.2019Background
- Ronald Jackson lived with longtime friend Desmon Beasley; tensions rose and Beasley asked Jackson to leave on Nov. 13, 2015.
- On the evening of Nov. 12, a witness (Williams) testified she saw Jackson smoke a cigarette that smelled like PCP; both Williams and Beasley later testified they smelled PCP in the apartment the next morning.
- The next afternoon Jackson and Beasley scuffled; Jackson stabbed Beasley in the eye with a clam shucker, leaving Beasley blind in that eye; Jackson claimed self‑defense.
- At trial the government was allowed to introduce testimony that Jackson used PCP ~18 hours before the attack; no expert testified about PCP’s duration or effects.
- The jury acquitted on aggravated assault but convicted Jackson of assault with a dangerous weapon; Jackson appealed the admission of PCP evidence without expert support.
- The D.C. Court of Appeals reversed and remanded, holding the PCP evidence required expert support and its admission was not harmless.
Issues
| Issue | Government's Argument | Jackson's Argument | Held |
|---|---|---|---|
| Whether testimony that Jackson used PCP ~18 hours before the assault could be admitted without expert testimony | Admissible as context/Toliver evidence to explain behavior and why witnesses acted as they did; highly probative of culpability | Admission was speculative and unduly prejudicial absent expert proof that PCP was affecting Jackson at the time | Evidence qualified as Toliver/Johnson context evidence but, given the 18‑hour gap and uncertainty about duration/effects, expert testimony was required; admitting it without an expert was an abuse of discretion and not harmless |
Key Cases Cited
- Drew v. United States, 331 F.2d 85 (D.C. Cir. 1964) (other‑crimes evidence inadmissible to prove propensity)
- Toliver v. United States, 468 A.2d 958 (D.C. 1983) (other‑crimes evidence admissible to explain immediate circumstances or "complete the story")
- Johnson v. United States, 683 A.2d 1087 (D.C. 1996) (distinguishing propensity evidence from evidence that is direct/substantially intertwined/necessary for context; adopting 403 balancing)
- Durant v. United States, 551 A.2d 1318 (D.C. 1988) (expert testimony required when determining whether drug evidence shows intoxication at relevant time)
- Robinson v. United States, 50 A.3d 508 (D.C. 2012) (error to exclude expert on effects of PCP within 24 hours where timing was dispositive)
- Clark v. United States, 593 A.2d 186 (D.C. 1991) (harmless‑error standard requiring fair assurance that error did not substantially sway verdict)