a telescopic steelwand that law enforcement officials use as a tool when on patrol or on the beat to detain suspects, used commonly due to its compact size instead of the old fashion baton
That cop broke out the beatstick on that fool mouthing off.
The prison guards used the beatsticks instead of the taser to detain and teach the inmate a lesson
The cop used a beatstick to save the trapped victim escape through the car window