14 C.F.R. § 13.113 Noncompliance with the investigative process.
Title 14 - Aeronautics and Space
If any person fails to comply with the provisions of this subpart or with any subpoena or order issued by the Presiding Officer or the designee of the Presiding Officer, judicial enforcement may be initiated against that person under applicable statutes.
Title 14: Aeronautics and Space
PART 13—INVESTIGATIVE AND ENFORCEMENT PROCEDURES
Subpart F—Formal Fact-Finding Investigation Under an Order of Investigation
§ 13.113 Noncompliance with the investigative process.