5.—(1) The chief constable must designate a deputy chief constable to exercise the functions of the deputy chief constable under these Regulations (and references in these Regulations to “the deputy chief constable” are, unless the context otherwise requires, references to that person).
(2) The deputy chief constable may direct or authorise a constable of at least the rank of sergeant to carry out any of the deputy chief constable’s functions under these Regulations.
(3) A direction or authorisation under paragraph (2) does not affect the deputy chief constable’s—
(a)responsibility for the carrying out of delegated functions; or
(b)ability to carry out delegated functions.