. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

F3Proceedings for a summary offence under this Part may be brought within a period of six months from the date on which evidence sufficient in the opinion of the prosecutor to warrant the proceedings came to his knowledge; but no such proceedings shall be brought by virtue of this section more than two years after the commission of the offence.

For the purpose of this section a certificate signed by or on behalf of the prosecutor and stating the date on which such evidence as aforesaid came to his knowledge shall be conclusive evidence of that fact; and a certificate stating that matter and purporting to be so signed shall be deemed to be so signed unless the contrary is proved.

F5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

F6Proceedings for an offence under this Part which is triable only summarily may be brought within a period of six months from the date on which evidence sufficient in the opinion of the prosecutor to warrant the proceedings came to his knowledge; but no such proceedings shall be brought by virtue of this section more than F7three years after the commission of the offence F8or, in the case of a continuous contravention, after the last date on which the offence was committed.

For the purpose of this section a certificate signed by or on behalf of the prosecutor and stating the date on which such evidence as aforesaid came to his knowledge shall be conclusive evidence of that fact; and a certificate stating that matter and purporting to be so signed shall be deemed to be so signed unless the contrary is proved.