49. Privilege from production of documents and appearing as witness

A member, officer, servant, or agent of the local planning authority shall not be required in any legal proceedings to which the local planning authority is not a party, to produce any record, register, or document the contents of which can be proved under subsection 48(2) by a certified copy, or to appear as a witness to prove the matters and transactions recorded in the record, register, or document, except by order of the court made for special cause.