So, this is purely for educational purposes, like googling jury nullification, but people should be aware of what a police "Stop Stick" is and how the police use them.
They're basically constructed out of stuff from the hardware store: a 2-3ft foam triangle cut from a sheet with a utility knife, ~2" steel tubes cut to a syringe-like point on either end and glued to the three faces of the triangle, then the whole thing wrapped in paper or fabric. When a vehicle runs one over the foam crushes and the tube-needles instantly deflate the tire. You can drive for a few minutes after being hit (until the now flat tire disintegrates and you're on the rim) but they work by...strongly deterring...someone from driving forward because of the amount of damage they cause and rendering the vehicle much less capable when trying to escape a persuit.
