8.—(1) The Broads Authority shall ensure that every certificate issued by it is signed by the chairman, vice-chairman or chief officer of the authority.
(2) The Lee Valley Regional Park Authority shall ensure that every certificate issued by it is signed by the chairman or vice-chairman of the authority.
(3) The Residuary Body for Wales or Corff Gweddilliol Cymru shall ensure that every certificate issued by it is signed by its chairman.
(4) A probation committee, except the inner London probation committee, shall ensure that every certificate issued by it is signed by the secretary to the committee, by the treasurer of the committee or by the Chief Probation Officer appointed by the committee.
(5) The inner London probation committee shall ensure that every certificate issued by it is signed—
(a)by the secretary to the committee;
(b)by the Receiver for the Metropolitan Police District or a person who, as respects all or most of the duties of his post, is required to report directly or is directly accountable to him; or
(c)by the Chief Probation Officer appointed by the committee.
(6) The Receiver for the Metropolitan Police District shall ensure that every certificate issued by him is signed by him or by a person who, as respects all or most of the duties of his post, is required to report directly or is directly accountable to him.