47.—(1) A person under the supervision of a member of the armed forces may, without holding a firearm certificate or obtaining the authority of the Secretary of State under Article 45, have in his possession a firearm and ammunition on service premises.
(2) A person who is being trained or assessed in the use of firearms under the supervision of a member of the Ministry of Defence Police may, without holding a firearm certificate or obtaining the authority of the Secretary of State under Article 45, have in his possession a firearm and ammunition on relevant premises for the purposes of the training or assessment.
(3) Paragraph (1) does not apply to a person while engaged in providing security protection on service premises and paragraph (2) does not apply to a person while engaged in providing security protection on relevant premises.
(4) In this Article—
“service premises” means any place, including any ship or aircraft, used for any purpose of the armed forces; and
“relevant premises” means any place used for any purpose of the Ministry of Defence Police.