Defence to charge under Article 90N.I.
91. A person charged with an offence under Article 90 shall not be convicted if he proves—
(a)that the vehicle did not belong to him and was not in his possession under a contract of hiring or of loan;
(b)that he was using the vehicle in the course of his employment and with the authority of his employer; and
(c)that he neither knew nor had reason to believe that there was not in force in relation to the vehicle such a policy of insurance or security as complied with the requirements of this Part.