Parliamentary Witnesses Oaths Act 1871
1871 Chapter 83
An Act for enabling the House of Commons and any Committee thereof to administer Oaths to Witnesses.
Whereas it is expedient that the House of Commons, and any committee thereof, should respectively have the powers of administering oaths to witnesses:
Be it enacted by the Queen's most Excellent Majesty, by and with the advice and consent of the Lords Spiritual and Temporal, and Commons, in this present Parliament assembled, and by the authority of the same, as follows: