Any person who –

(a) being required or authorized by law to make any statement on oath for any purpose, and being lawfully sworn, wilfully makes a statement which he knows to be false, or does not believe to be true; or

(b) wilfully uses any false affidavit or statutory declaration for any purpose for which the use of an affidavit or statutory declaration is authorized by any statute –

is guilty of a crime.

Charge:  

(a) False swearing.

(b) Using false affidavit [ or declaration].