New UK Law Bans Keyless Car Theft Gadgets — What It Actually Means for Your Car
New UK Law Bans Keyless Car Theft Gadgets — What It Actually Means for Your Car
From 29 April 2026, simply owning a signal jammer, relay device or CAN bus injection tool is a criminal offence in the UK — not just using one to steal a car. Here’s what the Crime and Policing Act 2026 actually changed, and why it doesn’t mean you can stop protecting your vehicle.
What the Crime and Policing Act 2026 actually changed
Before this law, police could only charge someone with car theft once they'd actually used a device to steal a vehicle — simply carrying a signal jammer or relay box around wasn't, on its own, enough to prosecute. The Crime and Policing Act 2026 closes that gap. As of 29 April 2026, it's a criminal offence to make, possess, import, adapt, supply, or offer to supply an electronic device intended for stealing a vehicle or its contents.
That covers the specific tools behind most modern car theft methods:
- Signal relays, repeaters and amplifiers — the equipment used in relay attacks to capture and boost a key fob's signal from outside your house.
- Signal jammers — used to block your key fob or alarm from locking the car properly, or to disable tracking devices.
- CAN bus injection tools — devices plugged directly into a vehicle's wiring to inject a false start signal, bypassing the key entirely.
Conviction carries an unlimited fine, up to 5 years' imprisonment, or both — a significant jump from the previous approach, where prosecutors had to prove intent under older laws like “going equipped” (Theft Act 1968).
New powers for police, too
Alongside the device offences, police also gained the power to enter premises without a traditional warrant where a stolen vehicle has been electronically tracked to that location and getting a warrant isn't practical — intended to speed up recovery before a car is broken down for parts or moved out of the country.
What the industry is saying
“This is a landmark moment… the Crime and Policing Act 2026 fundamentally changes that equation,” noting the new possession offence allows devices to be seized before a crime even takes place.
— Jonathan Hewett, Chief Executive, Thatcham Research
“Raising vehicle security alone will not prevent thefts — beating these criminals requires cooperation between government agencies.”
— Richard Billyeald, Chief Research & Operations Officer, Thatcham Research
“Strengthening the penalties for thieves caught carrying signal jammers is an important measure which is widely supported.”
— Edmund King, AA President
Thatcham's own reaction is worth paying attention to: they've welcomed the law but warned that organised gangs “will adapt their techniques.” That's the key point for drivers — this law targets the supply chain going forward, but it doesn't remove the devices already in criminals' hands, and it doesn't retroactively secure your vehicle.
Does this mean you don't need car security anymore?
No — if anything, it confirms how seriously the problem is being taken. Nearly 122,000 vehicles were reported stolen in England and Wales in the year to March 2025, and more than 92,000 of those cases had no identified suspect. A new offence for carrying the equipment doesn't switch off the equipment already out there, and it does nothing for a car that's simply left unlocked — still one of the most common ways thieves get in.
We've written in more detail about how relay attacks actually work, and the layered approach that stops them, in our relay theft explainer and our guide to protecting your vehicle across Tonbridge, Maidstone and Tunbridge Wells.
What this means if you already own vehicle security equipment
This law targets devices intended for theft, not legitimate vehicle security products. A Thatcham-approved immobiliser, tracker or dash cam fitted by a professional installer is not what this Act is aimed at — it's aimed at the relay boxes, jammers and CAN injection tools sold and used specifically to steal cars. If anything, TASSA-approved and Thatcham-accredited devices are now more clearly on the right side of that line, which is one more reason to make sure whatever's fitted to your car is genuinely approved rather than an unbranded device from an unclear source.
Frequently asked questions
What is the Crime and Policing Act 2026?
It's a UK law, in force from 29 April 2026, that makes it a criminal offence to make, possess, import, adapt, supply or offer to supply an electronic device intended for stealing a vehicle or its contents — covering signal jammers, relay/amplifier devices and CAN bus injection tools. It also gives police new powers to enter premises without a warrant where a stolen vehicle has been electronically tracked.
Is it illegal to own a signal jammer or relay device now?
If it's intended for vehicle theft, yes — simply possessing it is now an offence, without police needing to prove you used it to steal a car. The law does recognise legitimate uses for some signal devices (for example, certain Ofcom-approved equipment), and the burden is on the owner or seller to demonstrate a legitimate purpose.
Does this new law mean I don't need to protect my car anymore?
No. The law targets the supply and possession of theft devices going forward, but it doesn't remove devices already in circulation, and Thatcham Research has publicly warned that organised theft gangs will adapt their methods. Their own recommendation to drivers — faraday pouches, careful fob storage, and fitting a tracker — is unchanged.
What are the penalties under the new law?
Conviction can result in an unlimited fine, up to 5 years' imprisonment, or both.
Does the Crime and Policing Act 2026 affect Thatcham-approved trackers and immobilisers?
No. The Act targets devices intended for theft. Thatcham-approved and TASSA-verified security equipment fitted by a professional installer is legitimate vehicle security, not the kind of device this law is aimed at.
Protect your vehicle properly
Whatever the law changes, the fundamentals stay the same: a CAN bus–resistant immobiliser stops the car being driven away, a tracker helps get it back if it is, and the right combination depends on your specific vehicle.
Nitro Pro or Ghost Immobiliser
Wired directly into the vehicle so it simply won’t start without the correct tag, PIN or phone authorisation.
TrackManager Trackers
Thatcham-accredited GPS tracking so a stolen vehicle can be located quickly and, on the right setup, remotely immobilised.
StarLine M66v2
A hybrid tracker, immobiliser and anti-hijack device in one unit — no subscription, no multiple separate devices.
Not sure what your car needs?
Whether it's a new device or checking that what's already fitted is genuinely Thatcham-approved, get in touch for an honest assessment. We'll come to you, anywhere across Kent, and recommend what actually suits your vehicle — not a one-size-fits-all box.
Sources: GOV.UK — Crime and Policing Act 2026 serious crime factsheet; Thatcham Research official statement, 1 May 2026; Auto Express, “Keyless car theft devices outlawed at last”. This article is for general information only and isn’t legal advice — for anything specific to your situation, check the official GOV.UK guidance or speak to a legal professional.
