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Restrict use of riot-control chemicals

nature.com

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Re: Restrict use of riot-control chemicals

#4
Also the problem of expired tear gas, which will "breaks down into cyanide oxide, phosgenes and nitrogens that are extremely dangerous" according to a 2017 study.

This is how HK police uses Hongkongers for human experiments: https://www.hongkongfp.com/2019/08/09/hong-kong-reporters-co...