Sick Sticks Options

[Gothic Gregg]

If you have seen minority report, then you'll know what I mean. Basically the nightsticks, that when you get hit with your sick.

Could they exist, if so explain please.

Also what about that gun thing, that fires air that blasts people back.*

*Ever played TimeSplitters 3? Its like the dispersion pistol.

Them wepons would make the police the ultimate force.

[Clazzy]

You'd have to inject a hormone that would cause vomiting, or make a weapon that sends something down the throat of the victim. Being electrocuted is bad enough, somebody would have to clean up the mess if it made them sick, something even less pleasant if they're arrested when breaking and entering.
Electric shocks won't cause vomiting, simply put. They affect the nervous system, not the digestive system.