Dash cams and UK law: where to mount it, what you can record and what insurers accept

Dash cams are legal in the UK, widely used and increasingly accepted by insurers and the police as evidence. The rules that matter are about where the camera sits, what you do with the footage and, if you drive for work, data protection. Here is what you need to know before you buy and fit one.

Where you can mount it

The law does not name dash cams; it says the driver must have a full view of the road and the windscreen must not be obstructed. In practice that means mounting the camera behind the rear-view mirror, or at the very top of the windscreen on the passenger side, outside the area swept by the wipers. A camera hanging in the middle of the driver’s view can earn a fine and will fail an MOT if it sits in the tested zone. Suction mounts are fine; adhesive mounts are more secure in summer heat.

Power: cigarette socket or hard-wire?

A 12 V socket adapter powers the camera while the ignition is on and is a ten-second install. Parking mode — recording bumps and break-ins while the car is off — needs a hard-wire kit connected to the fusebox with a voltage cut-off so the camera cannot flatten the battery. If you want parking mode, budget for the kit and either fit it yourself with the instructions or ask an auto-electrician; it is an hour’s job.

What to look for in the camera

• Resolution and frame rate — 1080p at 30 fps is the useful minimum; number plates at night need good low-light performance more than 4K.
• Capacitor, not battery — batteries swell in a hot car; capacitors last.
• Loop recording and G-sensor — the card overwrites itself and locks the clip when it detects an impact.
• GPS — speed and location stamps help an insurer take a claim seriously.
• A decent card — a “high endurance” microSD rated for continuous writing, formatted in the camera every month or two.

We don’t stock dash cams at the moment, but you’ll find phone mounts, 12V chargers and other in-car tech for the rest of your set-up.

Recording other people

Recording on public roads for private use is legal. Two things change that: uploading footage of identifiable people to social media, where you take on responsibility for how it is used; and recording in a vehicle used for work, where the employer becomes a data controller under UK GDPR and needs a policy, signage inside the vehicle and a retention period. Audio recording of passengers in a taxi or private-hire car normally needs a notice and, in many licensing areas, permission.

Insurers and the police

Most UK insurers accept dash-cam footage in a claim and several offer a discount for having one fitted — ask, because it is rarely advertised. The police accept footage through the national dash-cam portal operated by most forces; you submit the clip and a statement online, and it can lead to a prosecution for dangerous or careless driving. Keep the original file, do not edit it, and submit within the force’s time limit (usually 7 to 14 days).

Fitting tips

Clean the glass with alcohol before sticking a mount; route the cable along the headlining, down the A-pillar trim (behind the airbag, never over it) and along the sill to the socket; set the time and date, then check the footage after a week to make sure it is actually recording. A camera that turns out to have been off for six months is the most common disappointment.

Frequently asked questions

Are dash cams legal in the UK?

Yes. The only legal constraint is that the camera must not obstruct the driver’s view of the road; mount it behind the mirror or at the top edge of the windscreen.

Can a dash cam fail an MOT?

It can if it sits inside the tested area of the windscreen swept by the driver’s wiper. Mounted behind the mirror or at the top edge it is not an issue.

Do insurers give a discount for a dash cam?

Some do, typically 10 to 15 per cent, but it is rarely advertised. Ask when you renew and keep proof of purchase.

Can I submit dash-cam footage to the police?

Yes, through the online dash-cam portal that most UK forces operate. Keep the original unedited file and submit within the force’s time limit.

Does parking mode drain the battery?

Not if the hard-wire kit has a voltage cut-off set correctly (usually 12.0 to 12.4 V). Without one, yes.