Fire risk
Tasers come with express instructions not to use them where flammable liquids or fumes may be present, such as filling stations or by police raiding methamphetamine labs, as tasers, like other electric devices, have been found to ignite flammable materials.
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 used in all CS sprays utilized 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.