According to The Intercept, this is how it is supposed to work: an officer pulls alongside a fleeing vehicle so that the officer’s front bumper is just ahead of the other vehicle’s back bumper. The officer matches the fleeing driver’s speed, gently touches — not rams — the other vehicle, and then makes a quick quarter turn of the wheel toward it. The other car then spins out safely to a stop.
According to California Highway Patrol instructions, “The key to proper execution of the PIT is finesse. Ideally, the initial contact with the subject vehicle should be so gentle the operator of the subject vehicle is not aware that contact has been made.”
Officers are generally trained on closed roadways at speeds between 25 and 40 mph. The PIT is now used by agencies throughout the U.S., and if used correctly at slow speeds and in the right circumstances — little traffic, no bystanders, open road — it can be an effective and predictable method to cut short pursuits and save lives.
At high speeds, it becomes a deadly force technique, a way to stop a driver at all costs.