A large amount of routine work devolved upon the police under the Arms, Explosives, Petroleum and Poisons Acts. Under the Arms Act licenses of various kinds were granted or cancelled, the shops and store-rooms of licensed dealers were regularly inspected and their stocks checked, and constant inquiries, numbering several thousand annually, were made to verify purchases from local dealers and trace the whereabouts of fire-arms. In 1911, just before the arrival of Their Majesties the King and Queen, five revolvers were stolen from a licensed dealer’s shop. The C. I. D. were successful in recovering the arms and in obtaining the conviction of the thieves: but in consideration of the approach of the Royal Visit, the Commissioner decided to take charge of the entire stock of arms and ammunition held by five Indian dealers, and kept it in deposit in the Head Police Office until after the departure of Their Majesties. Under the Explosives Act licenses were issued for manufacture, possession and sale; and magazines for the storage of explosives were regularly inspected by the special branch maintained for this purpose at headquarters. Similar duties were carried out under the Petroleum Act; while from April 1st, 1909, the Police became responsible for licensing the sale of poisons and checking stocks,—duties which up to that date had been performed by the Municipality. The task of licensing theatres and granting performance licenses, which was transferred to the Arms department at the close of 1909, imposed a heavy additional burden on the special staff. Most of the theatres at this date were devoid of proper exits and of means of protection against fire, and these seven years witnessed a continuous struggle to secure the erection of fire-proof staircases etc. and the provision of fire-proof drop-curtains. Fortunately the Police were able to obtain the help of the Chief of the Fire-brigade and of the Government engineering and electrical experts, in deciding what improvements were essential in each case, and it was chiefly due to this collaboration that a better fire-service had been installed by 1913 in each of the thirteen theatres of the City, and that many important structural alterations in both theatres and cinematographs had been introduced by the close of 1916. Perhaps the most notable achievement of the headquarters staff under Chief Inspector M. J. Giles was the preparation of a set of theatre rules, applicable to all structures used for public performances, which were brought into force in August 1914, and gave the police power to insist upon the provision of fire-appliances, water supply, exits, and fire-proof materials. As mentioned in a previous paragraph, the C. I. D. was made responsible for the scrutiny of plays, for which a performance license was required, and licenses were granted only to such plays as were declared by that department to be unobjectionable on political, moral or general grounds.