6.—(1) The Chief Constable may when granting a firearm certificate attach conditions to it.
(2) The Chief Constable may at any time by notice in writing—
(a)attach conditions to a firearm certificate;
(b)vary or revoke conditions attached under this Article.
(3) For the purposes of paragraph (2) the Chief Constable may by notice under that paragraph require the holder of the certificate to produce it to him within 21 days from the date of the notice.
(4) Paragraph (5) applies if—
(a)a firearm certificate is granted to a person who has not previously held a firearm certificate; or
(b)the Chief Constable considers that a firearm to which a firearm certificate relates is of a significantly different type from any firearm for which the person has previously held a certificate.
(5) Where this paragraph applies, the Chief Constable may attach to the firearm certificate a condition requiring the holder for a specified period to have any specified firearm to which the certificate relates in his possession when loaded only if he is under the supervision of a person who has attained the age of 21 and has held a firearm certificate for a firearm of that description for at least three years.
(6) A person who fails to comply with any condition subject to which a firearm certificate is held by him shall be guilty of an offence.