273. Waiver of privilege.

The privileges and immunities of diplomatic agents and their families and of the administrative, technical and service staff and private servants1 may be waived by the sending state2. A waiver by the head of the mission or any person for the time being performing his functions is deemed to be a waiver by that state3. Waiver must always be express4. Accordingly, even if a person entitled to immunity has entered an appearance or pleaded otherwise than to the jurisdiction, he may at a later stage prove that his government has not consented to a waiver of his immunity