Abstract: Methods and apparatuses for preventing the discharging of a hand weapon in locations where it is not permitted by determining the location of the weapon and receiving a signal for allowing discharging from a permitting agency only when the weapon is at a location where its discharging can be permitted.

Abstract: Methods and apparatuses for reducing the criminal usefulness of a dischargeable hand weapon used for defense by limiting its dichargeability to the area where it is kept for defense, by disclosing its location, and by disclosing that its imminent use is contemplated.

Abstract: Methods and apparatuses for reducing the criminal usefulness of a dischargeable hand weapon by transmitting radio signals between the location of the weapon and at least three different known locations and by using a device for reckoning the location of the weapon based on the travel times of the signals (triangulation), a memory storage device for storing information of at least one area where discharging of the weapon is allowed, a comparing device for deducing if the weapon is in an area where discharging is allowed, and a device for preventing its discharging if it is not within such an area.