NightHawk Vehicle Pursuit-Stopping System from Pacific Scientific

The NightHawk® is the first remotely deployed and retracted vehicle pursuit-stopping system. It is a smart combination of high tech engineering and proven Stop Stick® tire deflation technology packaged into a small case weighing less than 30 lbs. 
The NightHawk takes the first responder out of the way of oncoming traffic and eliminates the need to throw a stick across the road at just the right moment. 
Fairly simple to operate, it can be placed on the side of the road and can cover up to 24 feet of lane space when deployed. With just a click of a remote control RF frequency button (up to 100 ft. away), the system deploys in less than 2 seconds in front of the targeted vehicle. 
The target vehicle gets no time to react as it runs over the spikes eventually resulting in deflated tires and the Stop Sticks® are encased in protective sleeves for added safety. 
The system can then be remotely retracted with a second click of a button which ensures that no other vehicles are affected. The target vehicle’s tires are also deflated at a controlled pace allowing it to come to a safe stop.