"(1)Any person authorised by the Secretary of State in that behalf may conduct any proceedings under this Act before a magistrates' court although not a barrister or solicitor. (2)Notwithstanding anything in any Act— (a) proceedings for an offence under this Act other than an offence relating to housing benefit or community charge benefits may be begun at any time within the period of 3 months from the date on which evidence, sufficient in the opinion of the Secretary of State to justify a prosecution for the offence, comes to his knowledge or within a period of 12 months from the commission of the offence, whichever period last expires; and ... (3)For the purposes of subsection (2) above— (a) a certificate purporting to be signed by or on behalf of the Secretary of State as to the date on which such evidence as is mentioned in paragraph (a) of that subsection came to his knowledge shall be conclusive evidence of that date; and (b) a certificate of the appropriate authority as to the date on which such evidence as is mentioned in paragraph (b) of that subsection came to the authority’s knowledge shall be conclusive evidence of that date."
"I confirm that lawyers in Sol B2 Branch of the Solicitor's Office may, on behalf of the Secretary of State, exercise the powers under section 116(2) (a) and (3)(a) of theSocial Security Administration Act 1992 , to sign certificates attesting to the date on which sufficient evidence to justify a prosecution came to light."
"A valid certificate is determinative of the matter unless the certificate is inaccurate on its face, or can be shown to be fraudulent."
"This is to certify that evidence sufficient in the opinion of the Secretary of State to justify a prosecution for an offence of failing to declare a change in circumstances, contrary tosection 112(1)(a) of the Social Security Administration Act 1992 came to his knowledge on the9th March 2011 ."