Section 138
138. Registrar and other officers not compellable to produce register, etc.—
The Registrar or any officer of the Trade Marks Registry shall not, in any legal proceedings to which he is not a party, be compellable to produce the register or any other document in his custody, the contents of which can be proved by the production of a certified copy issued under this Act or to appear as a witness to prove the matters therein recorded unless by order of the court made for a special cause.