Here courtesy of SCOTUSBlog are the relevant documents from Smith v. United States.
Title: Smith v. United States
Issue(s): Whether, when a trial judge’s restriction on the cross-examination of a prosecution witness is challenged on appeal as a violation of the Confrontation Clause, the proper standard of review is de novo or abuse of discretion.
- Opinion below (Court of Appeals for the Armed Forces)
- Petition for certiorari
- Brief in opposition
- Amicus brief of the United States Army Defense Appellate Division
- Amicus brief of the National Association of Criminal Defense Lawyers
- Petitioner’s reply
And to round out here is the CGCCA opinion.