(1) Subject to section 10, the appropriate authority may revoke a licence if—
(a) the appropriate authority is satisfied that the holder—
(i) is prohibited from possessing a firearm or ammunition under section 11,
(ii) has intemperate habits or is of unsound mind,
(iii) is under the age of 18,
(iv) is for any reason considered unfit to be entrusted with a firearm;
(b) the holder fails to comply with a notice under subsection (2);
(c) the holder is charged with or convicted of an offence in which the use of a firearm or ammunition is an element of the offence;
(d) the holder has ceased to be a member of a shooting club where he or she was licensed for that purpose;
(e) the holder fails to comply with any of the provisions in Parts 4, 5 and 6.
(2) Where the appropriate authority revokes a licence under this section the appropriate authority shall notify the holder in writing of the revocation and the holder of the licence shall deliver his or her licence together with the firearm or ammunition to which such licence relates, to the appropriate authority within 3 days of the date of delivery of the notice to the holder of the licence.
(3) Where a licence is revoked under the provisions of subsection (1)(a) or (c) and the holder thereof holds several licences, then all such other licences or permits shall be deemed to have been revoked and the provisions of subsections (2) and (3) shall apply with any modifications necessary.
(4) A person who without lawful excuse (proof of which shall lie on him or her), fails to comply with a notice under subsection (2) commits an offence and is liable on conviction to a fine of $10,000 or to imprisonment for a term of 3 years or both.