Police car

Alfa Romeo 159 Patrol car in Italy

Mercedes-Benz W212 Patrol car in Hamburg, Germany

Luxgen Patrol car in Taiwan

The car that replaces walking for the 'beat' police officer.[4] Their primary function is to convey normal police officers between their duties (such as taking statements or visiting warnings). Patrol cars are also able to respond to emergencies,[5] and as such are normally fitted with visual and audible warnings.

A response car is similar to a patrol car, but is likely to be of a higher specification, capable of higher speeds, and will certainly be fitted with audible and visual warnings. These cars are usually only used to respond to emergency incidents, so are designed to travel fast, and may carry specialist equipment, such as carbines or shotguns. In the UK these are called area cars.[6][7][8]

NSW Police Force BMW 530d highway patrol car in Sydney, Australia

Traffic police cars, known in the UK as road policing units, are cars designed for the job of enforcing traffic laws, and as such usually have the highest performance of any of the police vehicles, as they must be capable of catching most other vehicles on the road. They may be fitted with special bumpers designed to force vehicles off the road, and may have visual and audible warnings, with special audible warnings which can be heard from a greater distance. In some police forces, the term traffic car may refer to cars specifically equipped for traffic control in addition to enforcing traffic laws. As such, these cars may differ only slightly from a patrol car, including having radar and laser speed detection equipment, traffic cones, flares, and traffic control signs.

Chevrolet Blazer Highway patrol in Brazil

Some police forces do not distinguish between patrol, response and traffic cars, and may use one vehicle to fulfill some or all roles even though in some cases this may not be appropriate (such as a police city vehicle in a motorway high speed pursuit chase). These cars are usually a compromise between the different functions with elements added or removed.

Police pickup truck in Olympia, Washington

Sports utility vehicles and pickups are used for a variety of reasons; off-road needs, applications where a lot of equipment must be carried, or for towing.[9] Four-wheel drive versions may be used for patrolling off-road areas such as mountains, forests, flooded areas, shorelines and beaches, where a police car would have difficulty maneuvering. They can be used for transporting SWAT teams and often have facilities to securely detain and transport a small number of suspects. Sometimes, police agencies use trucks equipped with cages for animal control.[10]

German unmarked Mercedes-Benz E-Class

Many forces also operate unmarked cars, in any of the roles shown above, but most frequently for the use of traffic enforcement or detectives. They have the advantage of not being immediately recognizable, and are a valuable tool in catching criminals while the crime is still taking place.[11] In the United States, unmarked cars are also used by federal law enforcement agencies such as the FBI and the Secret Service, but can be recognized by their U.S. government plates; however, they often have normal license plates.[12][13] All unmarked cars bear license plates. Many U.S. jurisdictions use regular civilian issued license plates on unmarked cars, especially gang suppression and vice prevention units. Also, see Q-car. Unmarked vehicles can range from normal patrol vehicles: Ford Explorer, Dodge Charger, Ford Crown Victoria, Chevrolet Impala, etc., to completely unmarked foreign vehicles: Toyota, Honda, Nissan, Mazda, etc.

There have been cases where criminals have pulled over motorists while pretending to be driving unmarked police cars, a form of police impersonation.[14][15] Some US police officers advise motorists that they do not have to pull over in a secluded location and instead can wait until they reach somewhere safer.[15] In the UK, officers must be wearing uniform in order to make traffic stops. Motorists can also ask for a police badge and peace officer identification.[16] Motorists often have the option to call a non-emergency number (like Police 101 in the UK) or, if the country does not have one, the emergency number. This telephone call can then be used verify that the police car (and officer(s)) are genuine.

An Australian Federal Police dog Squad van, based on a ute (pickup) chassis, in Canberra.

This type of car is used to transport police dogs. In some jurisdictions, this will be a station wagon or car based van, due to the installation of cages to carry the dogs. These units may also be known as K9 units (a homophone of canine, also used to refer to the animals themselves). These cars are typically marked in order to warn people that there is a police dog on board.[17]

Forces may operate surveillance cars. These cars can be marked or unmarked, and are there to gather evidence of any criminal offence. Overt marked cars may have CCTV cameras mounted on the roof to discourage wrongdoing, whereas unmarked cars would have them hidden inside. This type of vehicle is particularly common in the United Kingdom. In the United States, some police departments' vice, narcotics, and gang suppression units utilize vehicles that contain no identifiable police equipment (such as lights, sirens or radios) to conduct covert surveillance. Some police vehicles equipped with surveillance are Bait cars which are deployed in high-volume car theft areas.

Some police forces use vehicles (or sometimes fake "cut outs" of vehicles) to deter crime. They may be old vehicles retired from use, stock models restyled as police cars, or a metal sign made to look like a police car. They are placed in areas thought to be susceptible to crime in order to provide a high visibility presence without committing an officer. Examples of these can be seen on many main roads, freeways and motorways. In 2005, Virginia's (United States) legislature considered a bill which stated, in part: "Whenever any law-enforcement vehicle is permanently taken out of service ... such vehicle shall be placed at a conspicuous location within a highway median in order to deter violations of motor vehicle laws at that location. Such vehicles shall ... be rotated from one location to another as needed to maintain their deterrent effect."[18] Such cars may also be used in conjunction with hidden units further down the road to trick speeders into speeding back up again, and being clocked by the hidden unit. In Chicago, Illinois, a small fleet of highly visible vans are parked alongside major state and federal routes with automated speed detection and camera equipment, monitoring both for speeders and other offenders by license plate. Tickets are then mailed to the offenders or, in case of other crimes related to the licensed owner, may be served by the hidden unit further down the road.

In some jurisdictions, the police may operate a rescue service, and special units will be required for this.

In jurisdictions where the police are responsible for, or participate in, explosive ordnance disposal squads (bomb squads), dedicated vehicles transport the squads' crews and equipment.

Cars which are not for active duty, but for display and community policing purposes. These are often high-performance or modified cars, sometimes seized from convicted criminals, used to promote a specific program (e.g., the D.A.R.E. program) or help build connections between law enforcement and certain social groups (for example, using a car with modified 'jumping' suspension as a talking point with young people).

Some standard production cars can be visibly marked but not fitted with audio or visual warning devices. These are used by community liaison officers for transport to engagements and making appearances at community events. These cars do not respond to emergencies.[19][20]

Some vehicles are produced by automotive manufacturers with police markings, to showcase them to police departments. Emergency light and siren manufacturers including Whelen, Federal Signal and Code 3 also possess demo cars to showcase emergency vehicle fixtures and equipment.

A wide array of cars are used by law enforcement for riot control and to respond to public order incidents. Such vehicles can range from altered stock cars (such as minibuses, SUVs and prisoner transport vans), to armoured personnel carriers. Common modifications include launch mechanisms for tear gas canisters, shields, and caged windows.

A common feature on riot control vehicles is a water cannon, that can be used to disperse large crowds or extinguish fires.

A recent development has been the introduction of the Long Range Acoustic Device (LRAD), a sonic device able to send announcements, warnings and non-lethal pain-inducing tones to disperse crowds.

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  A Turkish TOMA water cannon of the General Directorate of Security in Turkey.
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  Yugoslav built BOV-M riot control armored vehicle
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  A Wasserwerfer 10000 water cannon of the State Police of Hamburg in Germany
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  An armoured Land Rover Tangi, of the Police Service of Northern Ireland
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  LRAD device mounted on an NYPD Emergency Service Unit Humvee

Modifications a police car might undergo include adjustments for higher durability, speed, high-mileage driving, and long periods of idling at a higher temperature. This is usually accomplished by heavy duty suspension, brakes, calibrated speedometer, tires, alternator, transmission, and cooling systems, and also sometimes includes slight modifications to the car's stock engine or the installation of a more powerful engine than would be standard in that model. It is also usual to upgrade the capacity of the electrical system of the car to accommodate the use of additional electronic equipment.

Police vehicles are often outfitted with an array of public safety equipment including AEDs (Automated external defibrillator), first aid and medical kits, fire extinguishers, flares, life buoys, barrier tapes and traffic cones.

Police vehicles are often fitted with audible and visual warning systems to alert other motorists of their approach or position on the road. In many countries, use of the audible and visual warnings affords the officer a degree of exemption from road traffic laws (such as the right to exceed speed limits, or to treat red stop lights as a yield sign) and may also suggest a duty on other motorists to move out of the direction of passage of the police car or face possible prosecution.

Visual warnings on a police car can be of two types: either passive or active.

Passive visual warnings are the markings on the vehicle. Police vehicle markings usually make use of bright colors or strong contrast with the base color of the vehicle. Modern police vehicles in some countries have retroreflective markings which reflect light for better visibility at night. Other police vehicles may only have painted on or non-reflective markings. Most marked police vehicles in the United Kingdom and Sweden have reflective Battenburg markings on the sides, which are large blue and yellow rectangles.[22] These markings are designed to have high contrast and be highly visible on the road, to deter crime and improve safety. Another passive visual warning of police vehicles is simply the interceptor's silhouette. This is easily observed in the United States and Canada, where the ubiquitous nature of the Ford Crown Victoria in police fleets has made the model synonymous with police vehicles.

Whatcom County Sheriff's Office – Stealth Dodge Charger

Police vehicle marking schemes usually include the word Police or similar phrase (such as State Trooper or Highway Patrol) or the force's crest. Some police forces use unmarked vehicles, which do not have any passive visual warnings at all, and others (called stealth cars) have markings that are visible only at certain angles, such as from the rear or sides, making these cars appear unmarked when viewed from the front.[23]

Ford Crown Victoria Police Interceptor with emergency lights system (ELS) activated.

The active visual warnings are usually in the form of flashing colored lights (also known as 'beacons' or 'lightbars'). These flashes are used in order to attract the attention of other road users as the police car approaches, or to provide warning to motorists approaching a stopped vehicle in a dangerous position on the road. Common colours for police warning beacons are blue and red; however, this often varies by force. Several types of flashing lights are used, such as rotating beacons, halogen lights, or light emitting diode strobes. Some police forces also use arrow sticks to direct traffic, or message display boards to provide short messages or instructions to motorists. The headlights of some vehicles can be made to flash, or small strobe lights can be fitted in the headlight, tail light and indicator lights of the vehicle.

In addition to visual warnings, most police cars are also fitted with audible warnings, sometimes known as sirens, which can alert people and vehicles to the presence of an emergency vehicle before they can be seen. The first audible warnings were mechanical bells, mounted to either the front or roof of the car. A later development was the rotating air siren, which made noise when air moved past it. Most modern vehicles are now fitted with electronic sirens, which can produce a range of different noises. Police driving training often includes the use of different noises depending on traffic conditions and maneuver being performed. In North America for instance, on a clear road, approaching a junction, the "wail" setting may be used, which gives a long up and down variation, with an unbroken tone, whereas, in heavy slow traffic, a "yelp" setting may be preferred, which is a sped up version of the "wail". Some vehicles may also be fitted with airhorn audible warnings. Also in some European countries, where a hi-lo two tone siren is the only permitted siren for emergency vehicles, a "stadt" siren will be used in cities where it has a loud echo that can be heard from blocks away to warn the traffic an emergency vehicle is coming, or a "land" siren will be used on highways to project its noise to the front to produce more penetration into the vehicles ahead to alert the drivers.

A development is the use of the RDS, a system of car radios, whereby the vehicle can be fitted with a short range FM transmitter, set to RDS code 31, which interrupts the radio of all cars within range, in the manner of a traffic broadcast, but in such a way that the user of the receiving radio is unable to opt out of the message (as with traffic broadcasts). This feature is built into all RDS radios for use in national emergency broadcast systems, but short range units on emergency vehicles can prove an effective means of alerting traffic to their presence, although is not able to alert pedestrians, non-RDS radio users, or drivers with their radios turned off.

A new technology has been developed and is slowly becoming more popular with police called the Rumbler. It is a siren that emits a low frequency sound which can be felt. Motorists that may have loud music playing in their car, for example, may not hear the audible siren of a police car behind them, but will feel the vibrations of the Rumbler. The feeling is that of standing next to a large speaker with pumped bass.[24]

A police lightbar with an LED message board and radio antennas

Police officers' additional equipment may include:

Two-way radio

Equipment consoles

These are used to house two-way radios, light switches, and siren switches. Some may be equipped with locking compartments for safe storage of firearms or file compartments.

Suspect transport enclosures

A separate compartment at the rear of a police van used to carry suspects

A barrier separating the rear and front seats of a police car, also known as a partition

These are steel and plastic barriers which ensure that a suspect—who has been frisked, disarmed, handcuffed and seat belted, is unable to attack the driver or passenger and unable to tamper with equipment in the front seat. These may be simple bars or grilles, although they can include highly impact-resistant but not bullet-resistant glass. Many use expanded steel instead of plastic glazing for the upper half of the partition.

Firearm lockers

In certain countries, including the United States, some police vehicles are equipped with lockers or locking racks in which to store firearms. These are usually tactical firearms such as shotguns or rifles, which would not normally be carried on the person of the officer.

Mobile data terminal

Many police cars are fitted with mobile data terminals (or MDTs), which are connected via wireless methods to the police central computer, and enable the officer to call up information such as vehicle license details, offender records, and incident logs.

Vehicle tracking system

Some police vehicles, especially traffic units, may be fitted with equipment which will alert the officers to the presence nearby of a stolen vehicle fitted with a special transponder, and guide them towards it, using GPS (turn-by-turn navigation along with dedicated tracking assistance features) or simpler radio triangulation.

Evidence-gathering CCTV

Police vehicles can be fitted with video cameras used to record activity either inside or outside the car. They may also be fitted with sound recording facilities. This can then later be used in a court to prove or disprove witness statements, or act as evidence in itself (such as evidence of a traffic violation).

Automatic number plate recognition (ANPR)

Automatic number-plate recognition cameras fitted on a police car

ANPR is a computerised system which uses cameras to observe the number plates of all vehicles passing or being passed by the police car, and alerts the driver or user to any cars which are on a 'watch list' as being stolen, used in crime, or having not paid vehicle duty.

Speed recognition device

Some police cars are fitted with devices to measure the speed of vehicles being followed, such as ProViDa, usually through a system of following the vehicle between two points a set distance apart. This is separate to any radar gun device which is likely to be handheld, and not attached to the vehicle.

Remote rear door locking

This enables officers in the front to remotely control the rear locks—usually used in conjunction with a transport enclosure.

Damage from a PIT maneuver on a Crown Victoria

PIT bumper

The Pursuit Intervention Technique (PIT) bumper attaches to the front frame of a patrol car. It is designed to end vehicle pursuits by spinning the fleeing vehicle with a nudge to the rear quarter panel. Cars not fitted with a PIT Bumper can still attempt a PIT maneuver at risk of increased front-end damage and possible disablement if the maneuver fails and the pursuit continues.

Push bumper

Also referred to as nudge bars or bullbars, these are fitted to the chassis of the car and located to augment the front bumper, to allow the car to be used as a battering ram for simple structures or fences, or to push disabled vehicles off the road.

Runlock

This allows the vehicle's engine to be left running without the keys being in the ignition. This enables adequate power, without battery drain, to be supplied to the vehicle's equipment at the scene of an incident. The vehicle can only be driven off after re-inserting the keys. If the keys are not re-inserted, the engine will switch off if the handbrake is disengaged or the footbrake is activated.[25]

The installation of this equipment in a car partially transforms it into a desk. Police officers use their car to fill out different forms, print documents, type on a computer or a console, consult and read different screens, etc. Ergonomics in layout and installation of these items in the police car plays an important role in the comfort and safety of the police officers at work and preventing injuries such as back pain and musculoskeletal disorders.[26][27][28][29]

Some police cars can be optionally upgraded with bullet-resistant armor in the car doors.[30] The armor is typically made from ceramic ballistic plates and aramid baffles. A 2016 news report said that Ford sells 5 to 10 percent of their US police vehicles with ballistic protection in the doors. In 2017 Bill de Blasio, the mayor of New York City, announced that all NYPD patrol cars would be installed with bullet-resistant door panels and bullet-resistant window inserts.[31][32]