Crimes Act 1914

Seizing goods in Commonwealth custody  
30
Any person who, without lawful authority, takes any goods or property out of the possession, custody, or control of the Commonwealth or a public authority under the Commonwealth or out of the possession, custody, or control of a Commonwealth officer who has the possession, custody, or control thereof by virtue of his office, shall be guilty of an offence.

Penalty: Imprisonment for 1 year.