My wife had something very similar to this deaf guy's case happen to one of her juvenille clients, a teenager with significant mental retardation and severe speech impediment. Couldn't answer cops questions so they tased him.

Btw, said kid did have some sort of ID card on him or something identifying him as having those problems, plus that info was already on file with the police department, but the officers checked neither.

In another brilliant incident in that same city, cops beat the paramedics to the scene to a 911 call where a middle-aged woman was having a hypoglycemia-induced siezure or something like it. The cops yelled at her to lie still, answer questions, etc., and then when she continued to convulse they tased her. Bystanders tried to explain that she was the _victim_ to no avail, just cops yelling at them too.

Then there was the Texas case where cops tased a suicidal guy who had doused himself with gasoline....