171.—(1) In any proceedings in which a court is hearing an application for an order under Part V or VI, no person shall be excused from—
(a)giving evidence on any matter; or
(b)answering any question put to him in the course of his giving evidence,
on the ground that doing so might incriminate him or his spouse of an offence.
(2) A statement or admission made in such proceedings shall not be admissible in evidence against the person making it or his spouse in proceedings for an offence other than perjury.