G20 protesters face police with Tasers [LINK]
Two words: aluminium foil
(a.k.a. aluminum foil, a.k.a. tin foil...)
This does not constitute advice to break the law. But if you're a perfectly peaceful protester, and someone illegally tasers you, then a layer of conductive foil under your clothes would essentially short-out the taser current. Some residual current may still enter your body, but a 0.1-ohm foil sheet will obviously present a much more attractive path for the current than your perhaps 600-ohm human body.
If you apply this taser counter-measures under inappropriate circumstances, then the riot-police may resort to tasering your head, or beating you senseless with a club, or simply shooting you dead with a Brazilian Electrician Arrest Aid [LINK].
So, please do not use Ohms Law to break The Law. But it's better to be a dead short than dead ("...following application of a CEW.").
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