Introduction

A TASER is an electroshock weapon sold by Taser International. It uses electrical current to disrupt voluntary control of muscles causing "neuromuscular incapacitation".  Someone struck by a Taser experiences stimulation of his or her sensory nerves and motor nerves, resulting in strong involuntary muscle contractions. Tasers do not rely only on pain compliance, except when used in Drive Stun mode, and are thus preferred by some law enforcement over non-Taser stun guns and other electronic control weapons.There are two main police models, the M26 and X26. Both come with accessories including a laser sight and optional mounted digital video camera that can record in low-light situations. Taser International sells a civilian model called the C2. On 27 July 2009, Taser introduced the X3, capable of firing three times without reload.

The Taser fires two small dart-like electrodes, which stay connected to the main unit by conductive wire as they are propelled by small compressed nitrogen charges similar to some air gun or paintball marker propellants[clarification needed]. The air cartridge contains a pair of electrodes and propellant for a single shot and is replaced after each use. There are a number of cartridges designated by range, with the maximum at 35 feet (10.6 m). Cartridges available to non-law enforcement consumers are limited to 15 feet (4.5 m). The electrodes are pointed to penetrate clothing and barbed to prevent removal once in place. Earlier Taser models had difficulty in penetrating thick clothing, but newer versions (X26, C2) use a "shaped pulse" that increases effectiveness in the presence of barriers.

Tasers primarily function by creating neuromuscular incapacitation; the devices interrupt the ability of the brain to control the muscles in the body. This creates an immediate and unavoidable incapacitation that is not based on pain and cannot be overcome. Once the electricity stops flowing the subject immediately regains control of his body. Most subjects after being Tazed once will comply so as to avoid being Tazed a second time.[citation needed]

Tasers also provide a safety benefit to police officers as they have a greater deployment range than batons, pepper spray or empty hand techniques. This allows police to maintain a safe distance.