(1) An investigating official must inform a person (the first person ) who is under arrest or a protected suspect of any request for information as to his or her whereabouts by any of his or her relatives, friends or legal representatives.
(2) The investigating official must then provide that information to the other person unless:
(a) the first person does not agree to the provision of that information; or
(b) the investigating official believes on reasonable grounds that the other person is not the first person's relative, friend or legal representative.
(3) This section has effect subject to section 23L.