Supreme Court of the United States
Diaz v. United States
June 20, 2024602 U.S. 526
Summary
The Supreme Court affirmed Diaz's conviction, holding that an expert's testimony that most drug couriers know they are transporting drugs does not violate Federal Rule of Evidence 704(b). The Court reasoned that Rule 704(b) bars only opinions about the defendant's mental state, not about a class that includes the defendant.
Holding
- Whether expert testimony that most members of a class have a particular mental state violates Federal Rule of Evidence 704(b).. Such testimony does not violate Rule 704(b) because the rule only prohibits opinions about the defendant's mental state.
Docket 23-14
Cited authorities
- CA11
- CA11
- 21 U.S.C. § 960(a)(1)
- 21 U.S.C. §§952
- Fed. R. Evid. 704(a)
- Fed. R. Evid. 704(b)
- 21 U.S.C. §§952
- Fed. R. Evid. 704(b)