United States v. Ulbricht
- Court
- Court of Appeals for the Second Circuit (Federal circuit court)
- Decided
- 2017
- Citation
- 858 F.3d 71 (2d Cir. 2017)
- Standard applied
- FRCP Crim. 16(b)(1)(C) — expert disclosure; Rule 16(a)(1)(E) discovery
What the court held
The Second Circuit affirmed the exclusion of both of the defendant's proposed expert witnesses in the Silk Road prosecution because his expert notices were untimely and substantively inadequate under Rule 16: they did not describe the opinions the experts would give or the bases for them. It also upheld the denial of Rule 16 discovery into a corrupt-agent investigation as immaterial to the defence as framed.
Why
The court accepted that preclusion is a harsh sanction, especially where it is the defendant rather than the government who is precluded, and that it implicates the right to present a defence. But it held the district court had considered alternatives, found a continuance impractical near the end of a long trial, and acted within its discretion given a clear rule violation. It also found no prejudice, because the defendant never explained what the experts would actually have said.
Our reading — not the court’s words
Why this matters in practice
This is the most consequential procedural lesson in the repository for anyone who serves as or retains a digital-forensics expert: the disclosure, not the expertise, is what gets people excluded. A notice listing topics — the mechanics of a blockchain, general principles of internet security — is not a summary of opinions and their bases, and by the time the deficiency is pointed out mid-trial there is no remedy left. Write the disclosure as if the opposing party will move to preclude on it, because that motion is routine.
This paragraph is Legal Cyber Academy’s editorial assessment of the decision’s practical importance. The court said none of it. For what the court actually said, read the opinion.
Additional detail
Tags: expert disclosure · Rule 16 · preclusion · blockchain · Silk Road
Cited 145times in CourtListener’s corpus at the time this entry was compiled. Treat it as a rough measure of influence, not of correctness.
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Summarised from the opinion as retrieved from CourtListener. Reference material, not legal advice. Back to the repository.