7The production of a printed copy of bye-laws which have been confirmed and on which there is indorsed a certificate purporting to be signed by the chief executive of the Authority, or a person authorised by the Authority to act for him, stating—
(a)that the bye-laws were made by the Authority,
(b)that the copy is a true copy of the bye-laws,
(c)that on a specified day the bye-laws were confirmed by the Secretary of State, and
(d)the date when the bye-laws came into operation,
shall be prima facie evidence of the facts stated in the certificate.