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Critics argue that Tasers and other high-voltage stun devices can cause cardiac arrhythmia in susceptible subjects, possibly leading to heart attack or death in minutes by ventricular fibrillation, which leads to cardiac arrest and—if not treated immediately—to sudden death. Although the medical conditions or use of illegal drugs among some of the casualties may have been the cause of death, the electric shock of the Taser can significantly heighten such risk for subjects in an at-risk category.〔USA Amnesty International's concerns about Taser use, (Statement to the U.S. Justice Department inquiry into deaths in custody ) Accessed on December 2, 2007〕 In some cases however, death occurred after Taser use coupled with the use of force alone, with no evidence of underlying medical condition and no use of drugs. == Risk of fire injury == Tasers, like other electric devices, have been found to ignite flammable materials. For this reason Tasers come with express instructions not to use them where flammable liquids or fumes may be present, such as filling stations and methamphetamine labs. An evaluative study carried out by the British Home Office investigated the potential for Tasers to ignite CS gas. Seven trials were conducted, in which CS gas canisters containing methyl isobutyl ketone (a solvent in all CS sprays used by the United Kingdom police) were sprayed over mannequins wearing street clothing. The Tasers were then fired at the mannequins. In two of the seven trials, "the flames produced were severe and engulfed the top half of the mannequin, including the head". This poses a particular problem for law enforcement, as some police departments approve the use of CS before the use of a Taser.〔(Safety flaw in police's new gun ) December 9, 2001〕 However, in the United States most pepper/CS spray is now water or oil based. This allows for the possibility of a Taser being used after an individual has been subjected to pepper spray without the concern for a fire.〔(water and oil based pepper spray ) Sep 18, 2007〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Taser safety issues」の詳細全文を読む スポンサード リンク
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