12(1)A certificate of the Commissioners—U.K.
(a)that a person was or was not, on any date specified in the certificate, registered or liable to be registered under section 33 of this Act,
(b)that the name of any person was or was not, on any date so specified, shown as the fiscal representative of any person in the register kept under that section,
(c)that any aircraft was or was not, on any date so specified, a chargeable aircraft,
(d)that any return required to be made under regulations made by virtue of section 38 of this Act had not, on any date so specified, been made, or
(e)that any duty shown as due in such a return, or in an assessment under section 12 of this Act, had not, on any date so specified, been paid,
shall be sufficient evidence of that fact until the contrary is proved.
(2)A photograph of any document furnished to the Commissioners for the purposes of Chapter IV of Part I of this Act and certified by them to be such a photograph shall be admissible in any proceedings, whether civil or criminal, to the same extent as the document itself.
(3)Any document purporting to be a certificate under sub-paragraph (1) or (2) above shall be taken to be such a certificate until the contrary is proved.