Poison gas used against Berlin police

[Cohaagen]

I generally have a rule against posting in GT, because of the American political crankery, but I think you should clarify this, Skybird. I know of no weapon in the UK arsenal that could produce effects like this. White Phosphorous produces a white cloud, and Red Phosphorous - surprise - makes a red one. CN has been out of the inventory for a long time, and CS was only ever used by the army in Northern Ireland. This also produced a thin white mist. Besides, what proof do you have that the grenade was British in the first place?

police officers lost orientation, broke down, and vomitted

Sounds suspiciously like the effects of CS gas, used by almost all police forces worldwide. Perhaps it's a case of them not enjoying the taste of their own medicine, what?