Section 13. Issuance of Firearms. —

A watchman or security agency shall be entitled to possess firearms after having satisfactorily passed the requirements prescribed by the Chief, Philippine Constabulary pertinent to the possession of firearm of any caliber not higher than 45 caliber in a number not exceeding one firearm for every two watchmen or security guards in its employ: Provided, however, That a watchman or security agent shall be entitled to possess not more than one riot gun or shotgun in order to provide adequate security when circumstances so demand: Provided, further, That all the firearms mentioned herein shall be carried by the watchman or security guard only during his tour of duty in proper uniform within the compound of the establishment except when he escorts big amounts of cash or valuables in and out of said compound.