Dash cam accident evidence statistics: the quick picture
Dash cam footage is no longer just a driver convenience feature—it is increasingly part of how road incidents are reported, reviewed, and acted on.
The most striking numbers show growth on both sides of the equation: rising adoption by drivers and expanding police use of submitted footage.
UK dashcam adoption climbed from 9% in 2015 to 27% in 2018, while police-facing systems have processed tens of thousands of reports and forensic research shows dash cams can preserve evidence in multiple locations beyond the video file itself.
- 27% of UK drivers had dash cams in 2018, up from 9% in 2015.
- 211,598 dashcam records were logged by Nottingham Police over a 3-year period leading up to 2017.
- 70% of portal submissions reportedly led to further police action.
- Only 1% to 2% of reports police act on are said to end in a court trial.
- Forensic researchers identified 7 evidential locations for dashcam artefacts.
- Among 19 UK police constabularies reviewed, submission windows ranged from 2 days to 14 days.
- Over 24,000 police video reports were submitted through the portal in the first half of 2024.
- The portal had processed over 135,000 dangerous-driving clips over 5 years.
Table of contents
- Dash cam accident evidence growth statistics
- Police submission and action statistics
- Submission deadlines by police force
- Dash cam evidence forensics statistics
- Where accident evidence is hidden in dash cam files
- Driver attitudes and related road safety numbers
Dash cam accident evidence growth statistics
Dash cam adoption tripled in just three years in the UK. The share of drivers using dash cams moved from 9% in 2015 to 15% in 2016, 17% in 2017, and then 27% in 2018.
| Year | UK dashcam adoption |
|---|---|
| 2015 | 9% |
| 2016 | 15% |
| 2017 | 17% |
| 2018 | 27% |
That trajectory matters because more devices on more vehicles means more potential third-party evidence after collisions, near misses, dangerous driving incidents, and hit-and-run events.
27% of UK drivers had dash cams by 2018—up 18 percentage points from 2015.
The operational side of dash cam evidence has also expanded fast.
Nextbase reported that the National Dash Cam Safety Portal would see a 31% increase in video reports in 2024, and the first half of 2024 alone saw over 24,000 police video reports through the portal.
Over 135,000 motoring offences had been submitted over the previous five years, and Nextbase said the portal had processed over 135,000 dangerous-driving clips while saving an estimated 123 years of police time.
These figures suggest dash cam accident evidence is not a fringe workflow.
It is increasingly part of routine road policing, especially when online submission systems make citizen footage easier to send and review.
Another scale indicator comes from local policing.
Nottingham Police recorded 211,598 dashcam records over a 3-year period leading up to 2017, a volume that hints at how quickly footage libraries can grow once digital evidence becomes normalized.
Dash cam accident evidence police use and action statistics
Dash cam footage is being submitted at significant volume—and often leads to some form of police follow-up. According to Nextbase, 70% of portal submissions led to further action from police.
“70% of portal submissions led to further action from police.”
That is one of the most quotable numbers in the dataset because it points to practical usefulness rather than just passive uploading.
It suggests many submitted clips are sufficiently clear, relevant, and procedurally acceptable to move beyond simple receipt.
At the same time, the portal notes that only 1% to 2% of reports police act upon end in a court trial.
That does not necessarily diminish evidential value.
Instead, it implies that most outcomes likely happen outside a full courtroom process.
- 70% of submissions reportedly led to further action.
- Only 1% to 2% of acted-on reports reportedly ended in a court trial.
- The portal is free of charge to both users and police.
- Uploaded videos are routed only to the chosen police force, not to Nextbase itself.
- The portal accepts still photographs and video footage if the submission fully shows the incident.
Together, those points help explain why submission volumes can grow.
A free portal, direct routing to the selected force, and acceptance of both photos and video lower barriers to reporting.
The top five regions processed over 18,000 portal submissions in 2024, which was more than the whole UK total submitted across 2021.
That comparison highlights how quickly digital evidence reporting appears to be scaling.
- 24,000+ police video reports were submitted in the first half of 2024.
- 18,000+ submissions came from the top five regions in 2024.
- 135,000+ offences had been submitted over the previous 5 years.
- 123 years of police time were estimated to have been saved.
Dash cam accident evidence submission deadlines by police force
One of the most practical findings in the dataset is that submission windows vary sharply by force.
Table 3 in the forensic study covered 19 UK police constabularies with specific submission rules, and the deadline spread runs from just 2 days to 14 days.
| Police force | Submission deadline since incident |
|---|---|
| Essex | 2 days |
| Cheshire | 3 days |
| Avon and Somerset | 7 days |
| Wiltshire | 10 days |
| Surrey | 10 days |
| Hampshire | 10 days |
| Metropolitan Police | 10 days |
| Thames Valley | 10 days |
| Dyfed-Powys | 14 days |
| Gwent | 14 days |
| North Wales | 14 days |
| South Wales | 14 days |
Essex had the shortest listed window at 2 days, followed by Cheshire at 3 days.
At the other end, four Welsh forces listed 14-day windows: Dyfed-Powys, Gwent, North Wales, and South Wales.
This range matters because many dash cams overwrite older footage automatically in everyday use.
Even though the forensic experiment used an 8GB SD card with no overwrites during capture, real-world drivers may not have the same margin for delay.
- Deadline variation can affect whether footage is still available when a driver decides to report.
- Short windows like 2 days and 3 days make fast evidence preservation especially important.
- Longer windows such as 10 to 14 days may offer more flexibility, but they still require prompt action.
Surrey also requested 2 minutes of pre-incident and post-incident footage, showing that some forces may want context around the moment of impact or alleged offence—not just the incident frame itself.
The broader portal landscape was also uneven in the study.
The reviewed table listed:
- 5 police forces accepting evidence through the Nextbase portal setup referenced in the paper
- 14 police forces accepting dashcam evidence directly
- 17 police forces intending to activate online submission
- 7 police forces not accepting online dashcam submission
Those figures show a transition period: some forces were already digital-first, some were direct-acceptance only, and others were still building online reporting capacity.
Dash cam accident evidence forensics statistics
The forensic side of the dataset is especially useful for understanding how robust dash cam footage can be as evidence.
A preliminary analysis examined 7 dashcam devices in depth, with roughly 3 hours of footage per device.
- 7 devices were tested in depth.
- ~3 hours of footage were recorded per device.
- An 8GB SD card was used during recordings.
- 4 recording modes were supported across devices.
All seven devices did not present evidence in exactly the same way. That is important because investigators, insurers, and legal teams cannot assume every clip carries the same metadata, naming convention, or embedded context.
The study found that dashcams in the sample supported 4 recording modes:
- Normal
- Emergency
- Parking
- Time-lapse
That matters because recording mode can affect how an incident is interpreted.
A parking-mode clip may frame a collision differently from a moving-vehicle clip, while emergency mode may indicate a trigger event such as braking or impact.
One model, the Nextbase 512GW, could record time-lapse video at 1/6 of normal speed.
That kind of mode difference is a reminder that not every file represents time identically in a straightforward playback context.
Native video players were available for all dashcams except SilentWitness.
This is a meaningful practical detail because proprietary players may expose metadata or map-linked GPS fields that are not immediately visible in a generic media player.
Forensic value is not limited to what appears on screen in the clip.
Where accident evidence is hidden in dash cam files
Perhaps the strongest forensic takeaway is that dash cam accident evidence can exist in several places at once.
The study identified 7 total evidential locations for dashcam artefacts:
- NMEA files
- Configuration files
- Directory structures
- EXIF metadata
- Filenames
- File system attributes
- Watermarks
Temporal data was found in at least 5 places: NMEA files, configuration files, EXIF metadata, filenames, and watermarks.
That redundancy can be useful when one source is incomplete or challenged.
| Evidence type | Number of locations identified | Where it appeared |
|---|---|---|
| Temporal data | At least 5 | NMEA files, configuration files, EXIF metadata, filenames, watermarks |
| GPS data | At least 4 | Watermark, EXIF metadata, NMEA files, native player |
| Vehicular speed data | 3 | Native player, watermark, EXIF metadata |
| Licence plate data | 1 | Watermark |
GPS data appeared in at least 4 places: watermark, EXIF metadata, NMEA files, and a native player.
Vehicular speed data appeared in 3 places: native player, watermark, and EXIF metadata.
Licence plate data appeared in only 1 place in the study: the watermark.
That is a useful caution for anyone assuming all identifying details are embedded broadly across every file layer.
Filename analysis also turned up practical evidential clues.
The study found that 5 of the 7 filename structures revealed temporal information, while 3 of the 7 revealed recording mode.
If a video file is copied, exported, or stripped from a player, some context may still survive in filenames, metadata, or linked data files.
That can help reconstruct timing, route, or speed even when the video alone seems incomplete.
The study also notes that time data could sometimes be inferred from daytime or nighttime imagery plus tools such as Suncalc.
In other words, even when explicit timestamps are unclear, investigators may still have secondary ways to estimate timing from environmental conditions shown in footage.
Dash cam accident evidence platform and police network statistics
Dash cam evidence depends not just on the device, but also on where the footage can be sent.
The study’s portal table paints a picture of a mixed but expanding police acceptance environment.
- 5 forces were accepting evidence through the Nextbase portal setup referenced in the paper.
- 14 forces were accepting dashcam evidence directly.
- 17 forces intended to activate online submission.
- 7 forces were not accepting online dashcam submission.
This suggests the road to full digital acceptance was uneven, but trending in one direction: toward broader online intake.
From an SEO and practical perspective, one of the most important operational stats is simple: the NDSP is free to users and to the police.
That removes one obvious friction point that might otherwise suppress submissions.
Another operational reassurance is data routing.
The NDSP says uploaded videos go only to the chosen police force, not to Nextbase itself.
For users concerned about who directly receives the evidence, that is a notable process detail.
Driver attitudes and related road safety statistics
The dataset also includes public-attitude figures that help explain the appeal of dash cam evidence.
70% of UK respondents said every car should be fitted with a dash cam.
70% of UK respondents said every car should be fitted with a dash cam.
That level of support is significant because it frames dash cams less as niche tech and more as an expected safety or accountability tool.
Other opinion figures point in the same direction:
- 41% said installing a dash cam was part of being a responsible driver.
- 46% said not driving for longer than 4 hours was part of being a responsible driver.
Interestingly, the dash cam figure sits close to other accepted road-safety behaviors, suggesting that recording capability is entering mainstream thinking about responsible motoring.
Risk on the road remains visible in the supporting research.
In a Nextbase study covering nearly 10,000 drivers, 11% were observed driving while distracted.
That figure helps explain why drivers may want independent visual evidence.
In a driving environment where distraction is not rare, objective footage can become especially valuable after an incident dispute.
The wider vehicle-crime backdrop adds another layer.
More than 100,000 vehicles were stolen in the year to June 2023, while only 2% of vehicle thefts resulted in a charge.
- 70% support fitting every car with a dash cam.
- 41% link dash cam installation with responsible driving.
- 11% of nearly 10,000 drivers were observed driving while distracted.
- 100,000+ vehicles were stolen in the year to June 2023.
- Only 2% of vehicle thefts resulted in a charge.
While theft statistics are not the same as collision evidence statistics, they reinforce a broader point: drivers are operating in a context where independent recorded evidence may feel increasingly necessary.
What stands out most in these dash cam accident evidence statistics
- Adoption rose fast, from 9% to 27% between 2015 and 2018.
- Police-facing submission volume is substantial, with 24,000+ reports in the first half of 2024 and 135,000+ over five years.
- Action rates are notable, with 70% of submissions reportedly leading to further police action.
- Court cases are rare, with only 1% to 2% of acted-on reports reportedly ending in trial.
- Deadlines vary sharply by force, from 2 to 14 days.
- Evidence is multi-layered, with 7 evidential locations identified in forensic analysis.
- Metadata matters, especially for timing, GPS, speed, and recording mode.
- Public support is strong, with 70% saying every car should have a dash cam.