; experts and consultants (1) Staff The Chairperson of the Working Group may appoint and fix the pay of additional personnel as the Chairperson considers appropriate. (2) Experts and consultants The Chairperson of the Working Group may procure temporary and intermittent services under section 3109(b) of title 5, United States Code. (3) Detailees Upon request of the Chairperson of the Working Group, the head of any Federal department or agency may detail, on a reimbursable basis, any of the personnel of that department or agency to the Working Group to assist in carrying out the duties of the Working Group under this Act. (e) Powers of the working group (1) Subpoena power (A) By Working group The Working may subpoena witnesses and records related to the purposes of this Act. (B) Enforcement The district courts of the United States have jurisdiction to enforce a subpoena issued under this section. Trial is in the district in which the proceeding is conducted. The court may punish a refusal to obey a subpoena as a contempt of court. (2) Hearings and Sessions (A) In general The Working Group may, for the purpose of carrying out this Act, hold hearings, sit and act at times and places, take testimony, and receive evidence as the Working Group considers appropriate. (B) Witnesses The Working Group may administer oaths or affirmations to witnesses appearing before the Working Group. (3) Powers of members and agents Any member or agent of the Working Group may, if authorized by the Chairperson, take any action that the Working Group is authorized to take under this Section, including requesting information. (4) Obtaining Official Information (A) United States Agencies and Departments (i) In general The Working Group may secure directly from any department or agency of the United States information necessary to enable the Working Group to carry out this Act. (ii) Furnishing information Upon request of the Chairperson of the Working Group for information solicited pursuant to subsection (b), the head of the department or