3D Scanning for Crash and Crime Scenes: What Agencies Get
A crime scene 3D scanner records an entire scene as millions of measured points plus 360° color imagery, usually in a minute or two per setup, so investigators can return to the scene digitally long after the road reopens or the room is released. For an agency, that means a complete, measurable record instead of a handful of tape measurements and photos, and data that can support reconstruction, diagrams and courtroom exhibits. You can get there three ways: hire a scanning team, rent a scanner, or buy one. Datum supports all three, starting with our 3D laser scanning services.
Here is what each path gives you, what the hardware can and cannot do at a scene, and how to decide.
What a crime scene 3D scanner actually captures
A terrestrial laser scanner sits on a tripod and sweeps a laser across nearly everything it can see. Each setup produces a full dome of measured points. Built-in cameras then shoot a 360° image set that colors the points, so the result looks like a photograph you can walk through and measure.
Two Leica scanners cover most public safety work:
- Leica RTC360: measures up to 2 million points per second, with a maximum range of 130 m (about 425 ft) and a 360° by 300° field of view. Three HDR cameras capture the imagery. The RTC360 has been succeeded by the RTC300, RTC500 and RTC700 family, but Datum still rents and services RTC360s.
- Leica BLK360 G2: a compact scanner that measures up to 680,000 points per second, with a maximum range of 45 m (about 148 ft) and a 360° by 270° field of view. Four HDR cameras handle imagery.
Once the scans are registered together, an analyst can measure distances, heights and sight lines, check what a witness could have seen from a given spot, and export views and diagrams. Specialized analysis such as trajectory or bloodstain work happens in forensic software, done by trained analysts, using the scan as the measured base.
How fast is capture at the scene?
Clearing a scene quickly matters, especially on a roadway. Leica's published full dome scan times look like this:
| Scanner | Fastest setting | Most detailed setting | HDR imaging | Max range |
|---|---|---|---|---|
| RTC360 | About 25 seconds (12 mm at 10 m) | About 1 min 40 s (3 mm at 10 m) | About 1 minute | 130 m (65 m at the highest density) |
| BLK360 G2 | About 7 seconds (50 mm at 10 m) | About 1 min 15 s (6 mm at 10 m) | About 20 seconds | 45 m |
Total time on scene depends on how many setups you need. A small interior room may need only a few. A multi-vehicle crash spread along a highway, with debris, rest positions and roadway marks, needs many more, because every vehicle and object casts a shadow the scanner cannot see behind.
Both scanners use a visual inertial system (VIS) that tracks the scanner as you carry it between setups. That lets the scans pre-register in the field, so you can check coverage on a tablet before you leave instead of discovering a gap back at the office.
Field conditions that affect scene data
Scanners are tough, but scenes are not controlled environments. Plan for these:
- Darkness: the laser measures without light, but the cameras need it. Leica notes that the BLK360 G2's VIS cannot work in complete darkness. At night scenes, bring lighting if you want colored points and reliable field pre-registration.
- Vehicles: glossy paint, chrome, black surfaces and glass are hard for any scanner. Leica lists highly reflective, black and clear glass surfaces as unfavorable. Expect thin or noisy data on windshields and dark paint, and add setups closer to key surfaces.
- Weather and sun: rain, snow and fog can degrade measurements, and surfaces in direct sun show more range noise. Both scanners carry an IP54 rating, but that does not make bad data good.
- Cold: the RTC360 is specified to operate from 23 °F to 104 °F (−5 °C to +40 °C), and the BLK360 G2 from 32 °F to 104 °F (0 °C to +40 °C). Winter crash scenes can push those limits. Moving a cold scanner into a warm, humid room can also fog the optics, so give it time to acclimate.
Crash scenes vs crime scenes
The two jobs ask different things of the equipment.
Crash scenes are outdoors, long and time-pressured. You are capturing roadway geometry, tire marks, gouges, debris fields and final rest positions, often across hundreds of feet. Longer range and faster scans favor an RTC360-class scanner. Tying the scan to control measured with a total station or GPS helps when the data must line up with roadway design or survey files.
Crime scenes are more often indoors: tight rooms, hallways, stairwells and furniture. Range matters less than detail, portability and ease of use. A compact scanner like the BLK360 G2 fits well. A handheld scanner such as the BLK2GO can walk a large building quickly, trading some precision for speed, which can make sense for context capture around a tripod-scanned core area.
What agencies get in the deliverable
Whether Datum scans the scene or your team does, a finished forensic scan project typically produces:
- A registered point cloud in standard formats (such as E57, RCP or Leica LGS) that investigators, reconstructionists and attorneys can open. LGS files can be viewed in Leica's free TruView viewer.
- A registration report documenting how the scans were tied together and the residual errors, which helps explain the method later.
- Measurements, scaled 2D diagrams and 3D views built from the cloud for reports and exhibits.
- The raw scan data, archived unaltered, so anyone can reprocess it and reach the same result.
Scan data has supported real prosecutions and defenses. See 3 court cases won with forensic 3D scan data for examples. Talk with your prosecutors and crime lab early about evidence handling, and keep calibration records for the scanner. Datum offers RTC360 calibration with a calibration certificate, and the RTC360's built-in Check and Adjust routine is worth running before important work.
Hire, rent or buy?
| Option | Best for | What it costs |
|---|---|---|
| Hire Datum's scanning team | Major cases, large or complex scenes, agencies without a trained operator, or backlog | Priced per job based on scene size, detail, deliverables and conditions |
| Rent a scanner | Occasional use, a specific case, or trying a scanner before buying | RTC360 kit: $2,500 for 2 days, $3,250 weekly, $8,000 monthly. BLK360 G2 kit: $850 for 2 days, $1,400 weekly, $4,200 monthly. BLK2GO kit: $850 for 2 days, $2,500 weekly, $6,000 monthly. |
| Buy | Agencies scanning scenes regularly with trained staff | BLK360 G2 packages list from about $26,500 (Hardware Pack) to $28,500 (Starter Pack). RTC360 package with HGC about $82,937 list. List prices as of 2026. |
Rentals have a 2-day minimum with weekly and monthly terms, ship nationwide, and are calibrated before dispatch. Rental spend can often be applied toward a purchase, which makes renting a sensible way to test a scanner on real cases. Browse the rental fleet to see each kit.
If you buy, budget for more than the scanner: field and office software (Cyclone FIELD 360 BLK Edition lists at $1,290), extra batteries, a rugged tablet, a care plan, periodic calibration and operator training. Datum builds an exact quote for the package your agency needs. Our public safety page covers more of how agencies use this equipment.
FAQ
Can you scan a scene at night?
Yes. The laser does not need light. The cameras do, so without lighting you lose color, and on the BLK360 G2 the VIS field pre-registration will not work in complete darkness.
Should we also bring a total station?
For crash scenes that must match roadway or survey coordinates, yes. A total station sets control that ties the scans to real-world coordinates. Here is why a total station on site helps when scanning.
How long is scan data useful?
As long as you archive it. Keep the raw files and the registered project together, and the scene can be measured again years later for appeals or new questions.
Get scene data you can rely on
If your agency needs a scene captured, wants to rent a scanner for a case, or is ready to build its own capability, Datum can help with each path. Learn more about our 3D laser scanning services or contact Datum to talk through your next scene.