Activate the oscillating roof light and flashers.

Determination

Pursuit

Spikes. Spikes are often used to stop vehicles by deflating tires, and many innovations have been applied to this simple technology, such as remotely controlled spikes that can be deployed or withdrawn as needed, spikes that stay in the tires of the car that runs over them, and even exploding spikes that can prevent fugitives from continuing to drive on the wheel rims. Spike systems currently in use allow the slow leakage of air from the tires, ultimately forcing the vehicle to a controlled stop.

Auto Arrestor System. This deploys a short electromagnetic burst that disables the electronic components of the pursued vehicle. It works with modern vehicles and causes damage to electronic ignition parts.

The Road Patriot. This is a guided rocket-powered missile that can be mounted on a scout car and launched from a distance of seven car lengths. It pursues the vehicle at 20 MPH faster than the vehicle is moving and emits a crippling electromagnetic pulse when within range, forcing the vehicle to a stop.

The Road Sentry. This is similar to the Road Patriot, but it is built into the concrete of the roadway in key areas and is able to be activated when a pursued car passes over it.

Fleeing Vehicle Tagging System. This fires a polymer projectile that attaches to the pursued vehicle and allows that vehicle to be tracked by radio signals.

Speedbump. This is a net technology that consists of a vinyl net capable of stopping a speeding car. It is useful at checkpoints and roadblocks.

Netting. Netting can also be used to stop escaping small craft on water. The nets can be dropped ahead of escaping craft by helicopters, preventing them from taking evasive maneuvers.

Air Nets and Harpoons. Nonlethal methods for use against aircraft have been difficult to deploy, as most attacks that affect the airworthiness of a plane or the pilot’s ability to control it are likely to be lethal. Still various air nets have been tested, as well as air-to-air harpoons with parachutes or other devices that could adversely affect the enemy plane.

Silver Shroud. One way to disable a vehicle is to cover it entirely, obscuring vision and/or mobility. This has been developed in a system called Silver Shroud, which can fire a very thin polymer film coated with aluminum P4. This film is 0.0005 inches thick and can cover an area of 1,960 square feet. When used against tanks, the film also entangles the turret if the crew attempts to move it.

Superacids. Destroy tires chemically using superacids millions to billions of times more potent than fluoric acid—injected in tires by use of caltrops or other means.

Caltrops. For simple tire deflation, a caltrop with a hollow tube to defeat self-sealing tires is sufficient.

Catalytic Depolymerization. Another way to attack tires is catalytic depolymerization, which causes the tire to degrade very quickly and requires very little of the applied substance.

Motor Mayhem. Engines can be attacked directly by a number of chemical means, such as by using agents to clog air filters—spray devices that deploy thin, long-chain polymer films. Bypass methods are ineffective in that the polymers will destroy the engine if allowed to bypass the filter.

It’s a Grind. Another method of attacking the engine is to use small abrasive material, such as extremely strong ceramic or Carborundum particles, causing highly increased friction and wear and destroying engines over a few days’ time.

Metal Fireballs. You can use metal fireballs to ignite metals. For instance, cerium oxide produces very fine ceramic dust, small enough to penetrate air filters and enter the engine.

Engine Combustion. Affecting engine combustion is also possible—either by damping it so the engine dies or by supercharging it. Acetylene gas can cause an engine to race so hard that it blows the pistons out and destroys it.

Pyrophoric Particles. Another way to destroy an engine is to introduce pyrophoric particles, such as cesium, which burn intensely and generate enough heat to destroy the engine.

Viscosification Agents. Also, viscosification agents can thicken fuels and cause them to clog the fuel passages and cripple the engine.

Traction. Modern technology has created some “superlubricant” substances, such as Teflon and potassium soaps, which can be used to severely inhibit movement through an area. Modern use might include crushable packets (known as slick ’ems) distributed over an area, which would release a superlubricant when run over by enemy vehicles, making movement very difficult. The opposite, of course, are stick ’ems, which can make an area sticky and hard to pass. New technology is being worked on to allow some materials to change composition based on certain conditions, such as temperature, pressure, or electromagnetic signals. These “smart” materials could resolve cleanup problems with some of the chemical weapons in development and could lead to other clever uses.

Optics. Some materials can almost instantly cause the crazing of optical surfaces, rendering them unusable or at least severely impaired. Many methods have been considered for “blinding” tanks, which have limited capabilities for viewing the outside, but they might work against fleeing automobiles, as well—for instance, paint bullets, chemical etching agents, and adhesive foams.

Officers avoid harming civilians if at all possible. Put civilians in front of them, and they’ll be forced to not shoot and to work around the civilians.

Officers fear for their lives. They can get aggressive but will always hold back slightly.

Officers avoid gunfire like the plague. Watch them swerve and hang back when you shoot at their cars.

Police enjoy spinning out an assailant’s car by hitting the car’s rear left or right side as they take a corner (the pit maneuver).

Over the course of the chase, officers will gradually surround your car and slow to a halt when they have you trapped.

Police carry pistols and shotguns. They only use these weapons when they get clear shots with no civilians in harm’s way.

Given a clear shot at a tire, an officer in the passenger seat will hang out the window to take the shot.

The police driver does not shoot while driving.

The police shooter will not shoot to kill unless you’re considered a deadly threat.

Officers will use a loudspeaker to try to get you to comply before using deadly force.

Police are always communicating. If one spots you, they will all know your position. You have a limited time after an officer spots you to take him out or destroy his car before he calls out your location over the radio.

Police will attempt to set up an impromptu roadblock. These roadblocks consist of two or three police vehicles askew in a line.

Major roadblocks involve three or more police vehicles, wooden barricades, or spike traps. SWAT teams and agents will participate in roadblocks as well.

When you run a roadblock, the police at the roadblock will give chase. The only exception is if they are trying to trap you in a confined area.

Police helicopters are armed and store weapons. As long as one chases you, the police will coordinate good roadblocks in your path.

Police also have 4-wheel-drive SUV police trucks, so they can still give a good chase if you are in a 4×4.

If an officer driver is killed, the car will either go out of control or roll to a stop.