2(1)Any person may apply to the Secretary of State for the issue of a certificate in respect of him.
(2)The Secretary of State shall not issue a certificate on any such application unless he is satisfied that the applicant—
(a)is a fit and proper person to perform the relevant functions; and
(b)has received training to such standard as he may consider appropriate for the performance of those functions.
(3)Where the Secretary of State issues a certificate, then, subject to any suspension under paragraph 3 or revocation under paragraph 4 below, it shall continue in force until such date or the occurrence of such event as may be specified in the certificate.
(4)A certificate authorising the performance of both escort functions and custodial duties may specify different dates or events as respects those functions and duties respectively.