1. The petitioner has been holding two licenses under the Arms Act, 1959 (here in after referred to as the Act), one for possession of a gun and another for possession of a revolver. He received a notice Ext. P-1 dated 24-1-1968 from the first respondent, the Additional District Magistrate, Cannanore, calling upon him to show cause in writing within 15 days off its receipt as to why the above licenses should not be cancelled for the reasons mentioned in the said notice. Ext. P-1 stated that it had been brought to the notice of the first respondent that at about 1.00 P. M. on 10-7-1966, the petitioner threatened with his revolver by firing in the air one Venkatesha Murthy and his two coolies, while they were working in a plot of land allotted to him on dharkast in RS. No. 315/3 of Make Village, stating that Vengatesha Murthy had no right over the property, that enquiries conducted in the matter revealed that the petitioner was a hot-tempered man and that his being in possession of the above fire arms was dangerous to public peace and tranquillity. The petitioner showed cause by his letter Ext. P-2 dated 1-3-1968, stating that the information against him was wholly unfoun