Gavin Howe
Drones are increasingly being used by law enforcement agencies worldwide to enhance their operations. They are a cost-effective way to conduct aerial surveillance, and can be used to respond to emergencies, monitor large events, reconstruct accident scenes, and locate lost persons. Drones can also be used in dangerous situations such as counter-insurgency, hostage rescue, and car chases, and can be equipped with non-lethal weapons. The use of drones by law enforcement raises ethical concerns, particularly regarding the potential use of armed drones in domestic settings and the potential impact on public trust and participation in public life.
| Characteristics | Values |
|---|---|
| First responders | Drones can be deployed quickly and reach a location within minutes after receiving an emergency request. |
| Cost-effective | Drones are a cheaper alternative to manned helicopters and do not require a large number of officers per call. |
| Safety | Drones can be used to enhance the safety of officers and the public. |
| Surveillance | Drones can be used for monitoring and crowd control at large events. |
| Data collection | Drones can be used to collect data and create 3D models of accident scenes, which can be used as evidence in legal cases. |
| Flexibility | Drones can access tight and hard-to-reach areas, such as inside buildings or between them. |
| Tactical advantage | Drones can be used for reconnaissance before tactical deployments, providing valuable information to officers. |
| Search and rescue | Drones can be used to search for lost persons, especially in large or difficult-to-access areas. |
| Traffic management | Drones can be used to evaluate traffic patterns and improve traffic flow. |
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What You'll Learn
Drones as first responders
Drones are increasingly being adopted by law enforcement agencies worldwide as they are a cost-effective way to conduct aerial surveillance. They are also ideal first responders, being faster than conventional vehicles and able to reach a location within minutes of an emergency request.
Drones can be equipped with various attachments depending on the task, and these payloads can be controlled by a single officer from a safe distance. This is useful in dangerous situations like counter-insurgency, hostage rescue, or a car chase. For example, drones can be used to position a camera to see into a window and get information about the location of suspects and/or hostages. They can also be used to identify license plates and individuals at a safe distance, allowing officers to make arrests or issue tickets later.
Drones can also be used to search large open areas more quickly than ground searchers, and thermal optics can help identify and locate heat signatures of people during both day and night operations. There have been numerous cases of drones being used by law enforcement in the United Kingdom to locate lost persons during colder weather, ultimately saving lives.
In the US, a solution called First iZ integrates with the CAD (Computer Aided Dispatch) system to power the 911 service in Tyler, Texas. This allows 911 operators to remotely dispatch drones as first responders to an emergency site from a unified dashboard.
Drones can also be used to reconstruct accident scenes with 3D mapping software, taking many pictures from different angles. This helps to identify small details that may be missed by the naked eye and can be used to create accurate reports for legal and insurance reasons.
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Aerial surveillance
Drones are rapidly being adopted by law enforcement agencies worldwide, revolutionizing their work and making it significantly safer and easier. Drones are a cost-effective way to conduct aerial surveillance, surpassing fixed cameras with their flexibility. They can be deployed quickly and can reach a location within minutes of receiving an emergency request, providing invaluable intelligence. They can also be used to reconstruct accident scenes, aiding in documentation and evidence preservation.
One of the most significant advancements in drone technology for law enforcement is the integration of 3D mapping software. Drones with high-tech cameras and sensors can scan accident and crime scenes from multiple angles, taking many pictures and creating detailed reconstructions. This technology helps analyze important details, such as the location of vehicles, debris, and skid marks, which can be crucial in understanding how an accident occurred and why. It also helps create accurate reports for legal and insurance purposes.
Drones can also be used for crowd monitoring and control at large public events, providing an unparalleled aerial perspective. They can help identify potential security threats and respond faster and more accurately to emergencies. For example, drones were used to monitor the enormous crowd at the Phoenix Open, a golf tournament with approximately 700,000 attendees. The security team flew 150 missions over five days, detecting and preventing drone incursions and catching people attempting to jump the perimeter fence.
In addition to accident scene analysis and crowd control, drones are also useful for search and rescue operations, especially in large open areas or difficult terrain. They can be equipped with thermal optics to identify and locate heat signatures of people during day and night operations, helping to locate lost persons and save lives. Drones have also been used in hostage situations to gather information about the location of suspects and hostages.
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Crowd monitoring and control
Drones are increasingly being used by law enforcement agencies to monitor and control crowds at large public events or protests. They offer an aerial perspective that is crucial for effective crowd monitoring and control, as well as the early identification of potential security threats.
Tethered drones, in particular, are useful for this purpose. Attached to a ground power source, they can stay in the air for extended periods, providing continuous aerial surveillance without the need for frequent battery changes. This secure tether also keeps the aircraft safely away from the crowd below.
Drones with high-definition cameras and zoom lenses can monitor specific areas in detail, while thermal imaging is useful for monitoring in low-light conditions. They can also be equipped with loudspeakers, which are helpful for making announcements and communicating directly with crowds, enhancing crowd management and emergency response.
For example, during the Phoenix Open in February 2023, drones were used to monitor a crowd of 700,000 people. The security team flew over 150 missions over five days, detected unauthorized drone incursions, and caught several fence jumpers. The fence jumpers withdrew as soon as they were spotted, demonstrating how drones can help de-escalate incidents.
Drones are also useful for monitoring crowd movements, identifying potential hazards, and assisting in crowd control efforts to ensure public safety. They can be deployed quickly to the scene of an incident and provide a live video feed to officers en route, helping them monitor crowd movements and respond quickly to incidents.
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Accident scene reconstruction
Drones are increasingly being used to aid in accident reconstruction, offering a faster and more accurate method of data collection. The use of drones can significantly reduce the time needed to collect data and map out the scene of an accident, helping investigators clear roads quickly and reducing the potential for secondary crashes.
Traditionally, accident reconstructionists relied on ground photography, simple photographs, and manual measurements using pencils and tape measures to document and reconstruct accident scenes. They would mark Xs and Os on graph paper to identify skid marks and important parts of the scene, which could take between six to eight hours, causing lengthy road closures. More recently, laser scanners have been used to speed up this process, but it can still take up to three hours.
Drones, on the other hand, can map an accident scene within just five to eight minutes, according to research from Purdue University. They achieve this by collecting visual data, which is then processed using mapping software to create 3D models or orthomosaic maps of the scene. These maps provide accurate diagrams, distance and angle measurements, and even 3D digital twins of the accident, offering a more holistic view of what transpired.
To ensure accuracy, drone operators should consider using ground control points and connecting the drone to RTK for increased precision. Proper lighting is also crucial, with lights set up at an elevated position (~8 ft.) and angled downwards to create a halo of light, ensuring all details are visible in the images.
Some commonly used drones for accident reconstruction include DJI's Inspire 2 with the ZenMuse X7 and the Phantom 4 Pro. However, there are various other mapping drones available, such as the Skydio 2+ and the Mavic 3 Enterprise, each offering unique features to assist in accident scene reconstruction.
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Tactical operations
Drones have become invaluable tools for police departments worldwide, offering innovative solutions for public safety and crime prevention. They are now a key part of security plans for police at big public events, offering an unparalleled aerial perspective that is crucial for effective crowd monitoring and control. Drones can also be used to monitor large crowds or areas for suspicious activity, such as illegal gatherings or drug deals.
Drones are also used in SWAT operations, providing overwatch as the team advances. The drone's view can be streamed in real time to SWAT team members, allowing them to see around buildings and into confined areas. This provides officers with valuable information before they move in, reducing the element of surprise and enhancing their safety.
In addition, drones can be equipped with thermal imaging and night-vision capabilities, making them ideal for search and rescue missions, especially in large or difficult-to-access areas. They can quickly spot breaches or unauthorised entries at secure facilities, and their thermal optics can help identify and locate people via their heat signatures, day or night.
Drones have also proven useful in accident scene reconstruction and analysis, providing detailed views from hard-to-reach angles. This high-level overview helps gather crucial data for accurately reconstructing events, a key component in traffic accident investigations.
While drones have greatly benefited law enforcement, their use also raises ethical concerns, particularly around privacy and the potential use of force. To maintain public trust, agencies must be transparent about their drone use, ensuring they respect community privacy while also minimising operational risks.
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Frequently asked questions
Drones can quickly scan accident scenes using high-tech cameras and sensors, taking pictures from multiple angles. 3D mapping software then processes these images to create accurate, detailed reconstructions of the scene. This helps investigators understand what happened and why, and allows them to create accurate reports for legal and insurance purposes.
Drones can be used to position a camera so that it can see through a window and provide information about the location of suspects and/or hostages. They can also be used to monitor large areas at once and detect suspects trying to escape.
Drones can be used to identify license plates and individuals at a safe distance, allowing officers to make arrests, issue tickets, and impound vehicles later. They can also be used to monitor large gatherings or illegal sideshows that block intersections.
Drones can be quickly deployed to an emergency site and can assess the situation before human responders arrive. They can also be used to guide police operations in situations where criminal violence presents a danger to public safety.
Drones are a cost-effective way to conduct aerial surveillance, as they are cheaper and faster than deploying a manned helicopter. They can also reduce the number of officers needed per call, and their use can help justify funding for drone programs.
