First Circuit -- US v. Luna

US v. Luna 

Sufficient evidence to find that a local policeman carrying an FBI credential as part of a task force deputation is a federal officer for purposes of statute prohibiting assaulting the Feds. 

 No reversible error where ammunition is admitted without chain of custody foundation if a subsequent witness testifies to its unique features.

No hearsay  in gov't "interstate nexus" expert relying on third-party information.

For ACCA priors - an offense which involves threatening gestures can be an offense which involves the threat or use of force.