US Patent 7275889 Targeted tethered tire capture projectile

A pursuit vehicle carries a projectile housed within a launcher mounted on its front end. The projectile is able to be directed at high speed from the launcher toward a tire of a pursued vehicle. A tether line is coiled about a tether reel within the chase vehicle and is fixed to the projectile. The projectile has folded barbs that extend once the projectile has entered the tire and which keeps the projectile from flying out of the tire due to centripetal force. Being penetrated, the tire quickly looses pressure and deflates while the tether line wraps itself around the wheel's axle and brakes which can cause the wheel to stop spinning.