
Speed traps are a common method of enforcing speed limits in Australia, with various technologies employed to monitor and penalize speeding motorists. While speed traps are generally legal, the use of radar detectors and jammers to evade speed detection is illegal in all states and territories. With the advent of infrared flash technology, authorities have enhanced their ability to capture vehicles exceeding speed limits without emitting a bright flash that could distract drivers. The legality and prevalence of speed traps in Australia have sparked debates, with some arguing that governments are motivated by revenue from speeding fines rather than road safety.
| Characteristics | Values |
|---|---|
| Radar detectors | Illegal in all states and territories |
| Radar jammers | Illegal in all states and territories |
| Radar detector fines | Vary by state, from $499 to $6480 |
| Radar detector usage | Detect radar or LIDAR used by police radar units and speed cameras |
| Radar jammer usage | Send out signals to confuse police radar |
| Mobile speed cameras | First used in New South Wales in 1991 |
| Fixed speed cameras | Introduced in New South Wales in 1999 |
| Speed camera usage | Used in Victoria and Queensland, often in unmarked cars |
| Speed camera operator | Serco contractors in Victoria, uniformed police officers in Queensland |
| Speed camera technology | Infrared flash technology, LIDAR |
| Speed enforcement strategies | Vary by state, with different approved devices |
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What You'll Learn
- Radar detectors and jammers are illegal in Australia
- Speed cameras are used in Victoria, Queensland, and New South Wales
- Police use LIDAR devices and vehicle speedometers to prosecute speeding
- Speeding fines generate substantial revenue for state governments
- Speed traps are not illegal, but they may be contrary to policy

Radar detectors and jammers are illegal in Australia
Radar detectors and jammers are illegal in all states and territories of Australia. The penalties for having a detector or jammer in your car vary from state to state and can be quite harsh. In some states, it is also illegal to own or sell such devices.
A radar detector is a device that can detect the radar or LIDAR used by police radar units and mobile speed cameras. It warns the driver via a flashing light and a buzzer that their speed is being measured. A radar jammer, on the other hand, sends out its own signal to confuse the police radar and render the measurement useless. These technologies were originally developed for military operations.
The authorities in Australia have taken a hard stance against the use of radar detectors and jammers because they believe that they compromise road safety. If drivers are able to see police radar before they are detected, they are more likely to drive faster and endanger themselves and others. Additionally, the use of these devices can reduce the revenue generated from speeding fines, which is an important source of income for state governments.
The fines for using or possessing radar detectors and jammers can be significant. For example, in the Australian Capital Territory (ACT), the fine is $3200, while in Tasmania, it is $1040. In New South Wales, there are multiple fines that can accumulate, resulting in a substantial financial penalty. The Northern Territory also takes a hard line, with a fine of $6480.
In summary, radar detectors and jammers are illegal in Australia, and the penalties for their use or possession can be severe. It is important for motorists to obey the speed limits and avoid using these devices to ensure their own safety and the safety of other road users.
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Speed cameras are used in Victoria, Queensland, and New South Wales
In Victoria, there are road safety cameras located across the state's road network. These include fixed road safety cameras, mobile cameras in unmarked vehicles, and trailer-based cameras. The government is currently trialling new mobile road safety trailer camera technology, with the details of the trial being kept under wraps. Victoria Police has approved approximately 2,000 locations where mobile cameras can operate at any time, and these locations are published monthly. Fixed camera sites are also subject to annual testing and certification to ensure compliance with regulations.
Queensland utilises both fixed and mobile speed cameras, with up to 3,500 mobile camera sites located throughout the state. The selection of camera locations is based on strict criteria, with crash history being the primary factor. Queensland also uses the Camera Detected Offence Program, partnering with the Queensland Police Service to detect road safety offences and improve safety.
New South Wales was the first state to introduce mobile speed cameras in 1991, and they began installing fixed cameras in 1999. Police vehicles in NSW are now fitted with dual-radar technology, which can monitor vehicles moving in two different directions simultaneously. They also employ LIDAR devices, vehicle speedometers, and speed estimates to enforce speed limits.
While the use of speed cameras is a common strategy across these states, it is important to note that the presence and enforcement of speed limits can vary depending on local regulations and road conditions.
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Police use LIDAR devices and vehicle speedometers to prosecute speeding
In New South Wales, police vehicles have been fitted with dual-radar technology known as the Stalker DSR 2X, which can monitor vehicles moving in two different directions simultaneously. Police in this state also use LIDAR devices and vehicle speedometers to prosecute speeding. The TIRTL device, a speed measurement sensor, is used in Victoria and New South Wales.
LIDAR devices, often referred to as "laser guns", are aimed at a target vehicle, and the trigger is pulled to measure its speed. LIDAR devices cannot be used in a moving patrol car. Speeds measured by LIDAR are generally more accurate than an officer's visual estimation of speed. However, there are instances where LIDAR may measure the speed of a nearby car instead of the target vehicle. This can occur when another vehicle has a more dominant reflective surface, or in heavy traffic when the distance between the radar and target vehicle is greater.
LIDAR devices can also produce inaccurate readings if the lens is dirty, scratched, or if the sighting system is misaligned. Human error can also cause erroneous speed measurements, as all speed-measuring devices rely on an officer's input to some extent. Therefore, officers must be trained and certified to operate LIDAR devices to ensure accurate readings.
Vehicle speedometers are used in conjunction with a VASCAR ("visual average speed computer and recorder") device, which is connected to the speedometer of a patrol car. The officer measures the distance between two points and uses the VASCAR device to measure the time it takes for a vehicle to travel between those points. The device then calculates the vehicle's speed by dividing the distance by the time taken to travel.
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Speeding fines generate substantial revenue for state governments
Speeding fines are a significant source of revenue for Australian state governments, with over a billion dollars collected each year across the country. While the money is intended to be reinvested into road safety measures, critics argue that the emphasis on revenue generation can lead to a disregard for other important factors, such as road safety itself.
In 2018-19, New South Wales collected $157 million in speeding fines, all of which were deposited into the Community Road Safety Fund. While a significant portion of this fund is allocated to speed camera programs and maintenance, other areas such as blackspot programs, school safety, and public education and awareness campaigns also benefit from this revenue.
In South Australia, speeding fines were increased by up to 60% to offset an expected $500 million reduction in GST revenue. These increases were projected to alleviate the budget deficit by approximately $79 million annually. Similarly, Tasmania also defended increased speeding fines, asserting that the additional revenue would be directed towards road safety measures and police enforcement.
Western Australia channels its speeding fine revenue into the Road Trauma Trust Account, with funds managed by the Road Safety Commission to implement priority road safety projects. Meanwhile, Victoria directs its revenue from road safety cameras to the Better Roads Victoria Trust Account, investing in vital road projects and safety initiatives.
While speeding fines are a substantial source of income for state governments, it's important to note that the majority of drivers comply with speed limits. In Victoria, for example, approximately 99% of drivers adhere to speed limits when passing road safety cameras. Nevertheless, the revenue generated from speeding fines provides significant funding for various road safety initiatives and infrastructure improvements across Australia.
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Speed traps are not illegal, but they may be contrary to policy
Speed traps are not illegal in Australia, but their usage may be against policy. The use of speed traps or cameras to enforce speed limits is a common practice in Australia, with each state employing its own strategies and devices. For instance, mobile speed cameras were first introduced in New South Wales in 1991, and the state now utilises the Stalker DSR 2X dual-radar system. In Victoria and Queensland, unmarked cars with mobile cameras or speed cameras are used. Western Australia, on the other hand, employs Doppler RADAR-based cameras mounted on tripods, accompanied by a white station wagon or an SUV.
While speed traps themselves are not illegal, the use of radar detectors and jammers to avoid speed detection is prohibited in Australia. Radar detectors can identify the radar or LIDAR used by police radar units and speed cameras, alerting drivers that their speed is being measured. Radar jammers, on the other hand, transmit signals designed to interfere with police radar equipment.
The Australian government has taken a firm stance against these devices, arguing that they compromise road safety. The penalties for possessing or using such devices vary across states but can include substantial fines and demerit points. For example, in Western Australia, drivers caught with radar detectors in their vehicles face a $1200 fine and seven demerit points. In the Australian Capital Territory (ACT), the fine is even higher at $3200, while Tasmania imposes a $1040 fine.
While speed traps are a common tool for enforcing speed limits in Australia, their usage may be subject to specific policies and regulations. Motorists who believe they have been unfairly targeted by a speed trap can seek information through Freedom of Information Act provisions to determine if the setup of the camera violated any policies. However, police powers regarding speed enforcement are extensive, and speed traps are generally considered a valid method of ensuring road safety and enforcing speed limits.
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Frequently asked questions
No, speed traps are not illegal in Australia.
Yes, it is illegal to use a radar detector in every state and territory in Australia. In some states, it is also illegal to own or sell such a device.
Radar detectors can detect the radar or LIDAR used by police radar units and mobile speed cameras. They warn the driver via a flashing light and a buzzer that their speed is being measured.
The penalties for having a detector or jammer in your car vary from state to state but tend to be harsh. For example, in South Australia, the fine for using a detector is $499 plus a $99 victims-of-crime loading. In the Australian Capital Territory (ACT), the fine is $3200, while in Tasmania, it is $1040.
Police in Australia use a variety of methods to catch speeding drivers, including mobile speed cameras, fixed cameras, LIDAR devices, vehicle speedometers, and speed estimates. They can also use radars in helicopters and planes.










































