Section 1. Definitions. “Pistol” or “revolver” as used in this Act, means any firearm with barrel less than twelve inches in length. “Crime of Violence”, as used in this Act means any of the following crimes, namely, murder, manslaughter, rape, mayhem, assault to do great bodily harm, robbery, larceny, burglary and house-breaking. Section 4. Persons forbidden to possess small arms. No person who has been convicted in this territory, or elsewhere, of having committed or attempted a crime of violence, shall own or have in his possession or under his control, a pistol or revolver.