Sec. 10-9-10.   Definitions.
   (a)   As used in this Article, unless the context otherwise requires, the following definitions shall apply:
   Ballistic knife means any knife that has a blade, which is forcefully projected from the handle by means of a spring-loaded device or explosive charge.
   Blackjack includes any billy, sand club, sandbag or other hand-operated striking weapon consisting, at the striking end, of an encased piece of lead or other heavy substance and, at the handle end, a strap or springy shaft which increases the force of impact.
   Bomb means any explosive or incendiary device or Molotov cocktail as defined in Section 9-7-103, C.R.S., or any chemical device which causes or can cause an explosion, which is not specifically designed for lawful and legitimate use in the hands of its possessor.
   Firearm silencer means any instrument, attachment, weapon or appliance for causing the firing of any gun, revolver, pistol or other firearm to be silent or intended to lessen or muffle the noise of the firing of any such weapon.
   Gas gun means a device designed for projecting gas-filled projectiles, which release their contents after having been projected from the device, and includes projectiles designed for use in such device.
   Gravity knife means any knife that has a blade released from the handle or sheath thereof by the force of gravity or the application of centrifugal force that, when released, is locked in place by means of a button, spring, lever or other device.
   Handgun means a pistol, revolver or other firearm of any description, loaded or unloaded, from which any shot, bullet or other missile can be discharged, the length of the barrel of which, not including any revolving, detachable or magazine breech, does not exceed twelve (12) inches.
   Knife means any dagger, dirk, knife or stiletto with a blade over three and one-half (3½) inches in length, or any other dangerous instrument capable of inflicting cutting, stabbing or tearing wounds; but does not include a hunting or fishing knife carried for sports use. The issue that a knife is a hunting or fishing knife must be raised as an affirmative defense.
   Machine gun means any firearm, whatever its size and usual designation, that shoots automatically more than one (1) shot, without manual reloading, by a single function of the trigger.
   Nunchaku means an instrument consisting of two (2) sticks, clubs, bars or rods to be used as handles, connected by a rope, cord, wire or chain which is in the design of a weapon used in connection with the practice of a system of self-defense.
   Short rifle means a rifle having a barrel less than sixteen (16) inches long or an overall length of less than twenty-six (26) inches.
   Short shotgun means a shotgun having a barrel or barrels less than eighteen (18) inches long or an overall length of less than twenty-six (26) inches.
   Stun gun means a device capable of temporarily immobilizing a person by the infliction of an electrical charge.
   Switchblade knife means any knife the blade of which opens automatically by hand pressure applied to a button, spring or other device in its handle.
   Throwing star means a disk having sharp radiating points or any disk-shaped bladed object which is handheld and thrown and which is in the design of a weapon used in connection with the practice of a system of self-defense.
   (b)   It is an affirmative defense to any provision of this Article, that the act was committed by a peace officer in the lawful discharge of his or her duties.
(Ord. 347 §1, 2008)