Stun Guns (Tasers)
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The name Taser is an acronym for "Thomas A. Swift's Electric Rifle"[4]. Arizona inventor Jack Cover designed it in 1969; naming it for the science fiction teenage inventor and adventurer character Tom Swift.

Modern taser-type weapons fire small dart-like electrodes with attached metal wires that connect to the gun, propelled by small gas charges similar to some air rifle propellants. The maximum range is up to 10 meters (30 feet). Earlier models of Taser needed the dart-like electrodes to embed in the skin and superficial muscle tissues layers; newer versions of the projectiles use a shaped pulse / arc of electricity which disrupt nerve and muscle function without needing the metal prongs on the projectile to penetrate the skin. Early models had difficulty in penetrating thick clothing, but the 'pulse' models are designed to bring down a subject wearing up to a Level III body armor vest.[citation needed]

Tasers are currently in use by a number of police forces worldwide to try to reduce firearms-related deaths. The Phoenix Police Department reported that officer shootings had dropped as a result from the use of TASER technology as an alternative to deadly force. Uses of a TASER device in this department increased from 71 in the year 2002 to 164 in the year 2003. Additionally, the number of officer-involved shootings decreased by 7 during this time period.[5] In Houston, however, police shootings did not decline after the deployment of thousands of TASERs [3].

While they are not technically considered lethal, some authorities and non-governmental organizations question both the degree of safety presented by the weapon and the ethical implications of using a weapon that some, such as Amnesty International, allege is inhumane. As a result, a number of civil liberties groups would like to see tasers banned.[citation needed] Amnesty International has documented over 245 deaths that occurred after the use of tasers.[6] The fact that a death occurred following use of a taser does not necessarily indicate the taser was the cause of death or even a contributing factor,[7] as many of the deaths occurred in people with serious medical conditions and/or severe drug intoxication, often to the point of excited delirium. Tasers are often used as an alternative to attacking the suspect with a baton or shooting him with firearms both of which have a much higher chance of serious injury and death than the taser, even using the highest estimates of possible taser-related deaths. The term "less-lethal" is being used more frequently when referring to weapons such as tasers because many experts feel that no device meant to subdue a person can be completely safe. The less lethal category also includes devices such as pepper spray, tear gas, and batons. The US National Institute of Justice has begun a two-year study into taser-related deaths in custody [8].

Tasers were introduced as a less-lethal weapon so that they could be used by police to subdue fleeing, belligerent or potentially dangerous criminal suspects, often when a lethal weapon would have otherwise been used. However, tasers have not proved to unequivocally reduce gun usage. For example, the Houston Police Department has “shot, wounded and killed as many people as before the widespread use of the stun guns” and has used tasers in situations that would not warrant lethal or violent force, such as verbal aggression [9].

On Tuesday, 5 July, 2005 Michael Todd, Chief Constable of Manchester, England, let himself be shot in the back with a taser, to demonstrate his confidence that tasers can be used safely. This was videoed, and the video was released to the BBC on 17 May 2007. He was wearing a shirt and no jacket. When tasered he fell forward on his chest on the ground, and (he said afterwards) the shock made him helpless; but soon after he recovered completely.

Although some police volunteers have shown tasers to function appropriately on a healthy, calm individual, the real-life target of a taser is, if not mentally or physically unsound, in a state of high stress. According to the UK’s Defence Scientific Advisory Council’s subcommittee on the Medical Implications of Less-lethal Weapons (DoMILL), “The possibility that other factors such as illicit drug intoxication, alcohol abuse, pre-existing heart disease and cardioactive therapeutic drugs may modify the threshold for generation of cardiac arrhythmias cannot be excluded.” Additionally, taser experiements “do not take into account real life use of tasers by law enforcement agencies, such as repeated or prolonged shocks and the use of restraints” [10].