A shock dispenser is a device that delivers an electric shock to an individual. The most common type of shock dispenser is the Taser, which stands for Thomas A. Swift's Electric Rifle. It is a non-lethal weapon used by law enforcement and military personnel to incapacitate a person without causing serious injury. The Taser works by delivering an electrical current through two small probes that are attached to the target. The current causes the muscles to contract, resulting in temporary paralysis.