Volumes 16 and 17 of this set deal with criminal prosecutions in U.S. District Courts. The forms are organized according to the Federal Rules of Criminal Procedure.
Lexis (ID and password required)
A compilation of all forms used during the pre-trial proceedings, trial, and post-trial situations in federal and state criminal courts.
Westlaw (ID and password required)
The U.S. Courts.gov website provides a chart with links to criminal law forms. The forms are listed by form number. The forms can be searched by keyword, form number, or filtered by category.