22 C.F.R. § 51.86 Admissibility of evidence.
Title 22 - Foreign Relations
The person adversely affected and the Department may introduce such evidence as the hearing officer deems proper. Formal rules of evidence shall not apply, but reasonable restrictions shall be imposed as to relevancy, competency and materiality of evidence presented.
Title 22: Foreign Relations
PART 51—PASSPORTS
Subpart F—Procedures for Review of Adverse Action
§ 51.86 Admissibility of evidence.