121—Commencement of prosecutions
(1) Proceedings for an
offence against this Act must be commenced—
(a) in
the case of an expiable offence—within the time limits prescribed for
expiable offences by the Summary Procedure Act 1921 ;
(b) in
any other case—any time within 3 years after the date of the alleged
commission of the offence or, with the authorisation of the Director of Public
Prosecutions, at any later time within 5 years after the date of the
alleged commission of the offence.
(2) An apparently
genuine document purporting to be signed by the Director of Public
Prosecutions authorising the commencement of proceedings under this Act must
be accepted in legal proceedings, in the absence of proof to the contrary, as
proof of the authorisation.