(3) A driving licence limited to driving an invalid carriage may be granted to the applicant if the Deputy Commissioner of Police is satisfied that he is fit to drive such a carriage.
(4) The applicant may, except in the case of such diseases and disabilities as may be prescribed, on payment of the prescribed fee, claim to be subjected to a test as to his fitness or ability to drive a motor vehicle of any such class or description as he would be authorised by the licence to drive.
(5) If the applicant passes the prescribed test and is not otherwise disqualified, the driving licence shall not be refused by reason only of the provisions of subsection (2), except that if the test proves his fitness to drive motor vehicles of a particular construction or design only, the driving licence shall be limited to the driving of such vehicles.
(6) If it appears to the Deputy Commissioner of Police that there is reason to believe that any person who holds a driving licence is suffering from a disease or physical disability likely to cause the driving by him of a motor vehicle, being a motor vehicle of any such class or description as he is authorised by the licence to drive, to be a source of danger to the public and, after making such inquiry as he considers necessary, the Deputy Commissioner of Police is satisfied that the licence holder is so suffering then, whether or not the licence holder so suffering has previously passed a test under this section, the Deputy Commissioner of Police may, after giving to the licence holder notice of such intention, revoke the driving licence.
(7) The licence holder shall on receipt of such notice deliver the driving licence to the Deputy Commissioner of Police for cancellation.
(8) The licence holder may, except in the case of such diseases and disabilities as may be prescribed, claim to be subjected to a test as to his fitness or disability to drive a motor vehicle and, if he passes the prescribed test, the driving licence shall not be revoked or, if it has already been revoked, shall be returned to the licence holder and the revocation thereof shall be rescinded