Period for bringing prosecutionW
33.—(1) Proceedings for an offence under regulations 20(3), 26, 27, 28, 29, 30, 31(1) or 32 may be brought within a period of 12 months from the date on which the prosecutor first knows of evidence sufficient, in the prosecutor's opinion, to justify proceedings.
(2) But no such proceedings may be brought more than 18 months from the commission of the offence.
(3) For the purposes of paragraph (1)—
(a)a certificate signed by or on behalf of the prosecutor and stating the date on which the prosecutor first knew of evidence sufficient to justify the proceedings is conclusive evidence of that fact;
(b)a certificate stating the matter and purporting to be so signed is deemed to be so signed unless the contrary is proved.