6. Any person who, in giving any testimony (either orally or in writing) otherwise than on oath, where required to do so by an order under section 2 of the Evidence (Proceedings in Other Jurisdictions) Act 1975 [1975 c.34] , makes a statement—
(a)which he knows to be false in a material particular, or
(b)which is false in a material particular and which he does not believe to be true,
shall be guilty of an offence and liable on conviction on indictment to imprisonment for a term not exceeding two years, or to a fine, or to both.