Section 4: Immunities of members of staff and families.

Subject to the provisions of this Act, a person who is-(a) a member of the official or domestic staff of a chief representative of a Commonwealth country; or
(b) a member of the family of a chief representative of a Commonwealth country; or
(c) a member of the family of a member of the official staff of a chief representative of a Commonwealth country,
shall be entitled to the like immunity from suit and legal process as would be accorded to him if the chief representative were a foreign envoy.