28. (1) Subject to this Act—
(a) a dangerous weapons licence authorises the licensee—
(i) in the case of a self-loading centre fire rifle of a military type or a pistol grip weapon—to possess and use the dangerous weapon registered on the licence;
(ii) in the case of a dangerous weapon to which subparagraph 5 (1) (b) (ii) applies—to possess the dangerous weapon registered on the licence; and
(iii) in any other case—to possess and use a dangerous weapon registered or endorsed on the licence;
(b) a corporate dangerous weapons licence authorises the licensee to possess a weapon registered on the licence; and
(c) a dangerous weapons licence granted to a person under the age of 18 years authorises him or her to possess and use a dangerous weapon registered or endorsed on the licence while that person is on a shooting range owned or occupied by an approved club and he or she is—
(i) under the immediate supervision of an authorised instructor; or
(ii) taking part in a competition in the use of dangerous weapons conducted by or in association with an approved club of which he or she is a member.
(2) A licensee (other than a licensee who is under the age of 18 years) is to be taken to be authorised to possess a dangerous weapon registered on a dangerous weapons licence held by a person under the age of 18 years if the first-mentioned licensee—
(a) is a member of an approved club; and
(b) is accompanying the other licensee to or from an approved club, or a competition conducted by or in association with an approved club, and the weapon is in his or her possession for that purpose.