(3) A person who has a privilege conferred by any of sections 54 to 59 and 64 in respect of a communication, information, opinion, or document may require that the communication, information, opinion, or document not be disclosed in a proceeding—
(4) If a communication, information, opinion, or document, in respect of which a person has a privilege conferred by any of sections 54 to 59 and 64, is in the possession of a person other than a person referred to in subsection (3), a Judge may, on the Judge’s own initiative or on the application of the person who has the privilege, order that the communication, information, opinion, or document not be disclosed in a proceeding.
(5) This Act does not affect the general law governing legal professional privilege, so far as it applies to the determination of claims to that privilege that are made neither in the course of, nor for the purpose of, a proceeding.