27 CFR § 70.24 - Enforcement of summonses.
(a) In general. Whenever any person summoned under 26 U.S.C. 7602 neglects or refuses to obey such summons, or to produce books, papers, records, or other data, or to give testimony, as required, application may be made to the judge of the district court or to a U.S. magistrate for the district within which the person so summoned resides or is found for an attachment against him as for a contempt.
(b) Persons who may apply for an attachment. Appropriate TTB officers are authorized to apply for an attachment as provided in paragraph (a) of this section. The authority to apply for an attachment for the enforcement of a summons may not be redelegated.