Published: 14 Oct 2026
Most thefts of survey equipment are carried out by organised criminal gangs who know exactly what a GNSS receiver, total station or laser scanner is worth, where survey teams are likely to be working, and how quickly a van can be emptied. The cost of these thefts goes far beyond the price of replacement kit: lost days on site, delayed projects, disappointed clients and, often, staff who have been left shaken by the experience.
GSA is continuing to help members fight back. Firstly, by prevention, making sure members are making their teams and their vehicles harder targets. Secondly, by providing support in the aftermath of a theft, through the Association’s ongoing work as a donor organisation to the specialist police unit NCATT, the National Construction and Agriculture Theft Team. Now, in another positive step, we have news of a free Vehicle Watch scheme for Greater London-based fleets.
New: a free CT1 Vehicle Watch Scheme for Greater London fleets
Developed in partnership with the Metropolitan Police Service, the CT1 Vehicle Watch Scheme will give eligible members a professionally installed, tamper-proof reflective security sticker, making their vehicles part of an active police watch programme. The sticker signals to police officers that the owner is happy for the vehicle to be stopped so they can check it is being driven by someone entitled to use it. If a registered vehicle is spotted during high-risk hours, officers can act straight away.
There are two label types, so members can choose the appropriate one:
Timed label: for vehicles that should not normally be on the road overnight. It indicates the vehicle may be stopped if seen being driven between 10pm and 4am, which makes it ideal for survey fleets parked up at night.
Non-timed label: for vehicles that may legitimately be used at any time, such as those working night shifts, possessions or out-of-hours surveys.
The stickers are made from high-grade retroreflective film so they stand out in low light, and they are fixed with an industrial-strength adhesive designed to last the life of the vehicle. Any attempt to peel one off leaves a permanent “void” pattern, giving officers an immediate visual prompt. The scheme does not involve any GPS tracking of your vehicles.
Who is eligible?
To be eligible, vehicles must be UK registered and taxed, owned by a registered business or sole trader, and working in or based in the Greater London area. You can sign up and book a free installation appointment at TVL Group HQ in Essex or you can visit one of the various trade and tool marking days to have it fitted and registered. Find out more here https://vehiclewatch.ct1.com/
Organised gangs rely on being able to move stolen vehicles and equipment quickly and without being noticed, particularly during the night and the early hours. A simple, highly visible sticker that tells officers a van should not be on the road at that time takes away that cover.
Prevention: making your team a harder target
The strongest defence comes from combining several layers of protection so that thieves decide your vehicle, your site or your equipment is simply not worth the risk. As a reminder, GSA members should:
- Never leave equipment unattended. Roadside thefts are a common pattern, with instruments taken from tripods or the back of vans in seconds. Keep kit within sight and keep vehicles locked, even for short periods on site. Park in well-lit high-footfall areas where possible.
- Empty vehicles overnight. Wherever practical, remove instruments from vans at the end of the day and store them securely, and make it known with signage that no equipment is left in the vehicle.
- Upgrade vehicle security. Additional locks, alarms and immobilisers deter gangs who target vans for their contents. Use slam locks and secondary vehicle security on all survey vans.Park with rear and side doors against a wall or another vehicle where possible.
- Mark, register and record everything. Keep an up-to-date register of serial numbers, photographs and distinguishing features for every item. Apply tamper-evident labels and UV-reactive marking fluid. Use forensic marking on all high value items. Engrave your company postcode and the last 3 digits of the asset number visibly. Photograph everything after marking it and store these records securely. If equipment is repaired or refurbished, remember to repeat this process. Recorded, marked kit is harder to sell and easier to return. It is much less attractive to thieves.
- Use tracking and manufacturer security features. Fit GPS trackers to your vehicle fleet and fit trackers in instrument cases where possible, and make full use of any PIN locks or security functions built into your equipment.
- Remember to review your insurance to reflect current replacement values
- Stay alert. Organised gangs often watch sites and follow vehicles before they strike. Brief your teams to vary routines where they can, keep a low profile about what they carry, and report anything suspicious. Vary parking locations where you can. Report any suspicious behaviour by calling 999.
If the worst happens: what to do after a theft
If you are unfortunate enough to become a victim, acting quickly and reporting fully gives the best chance of recovering your equipment and helps police build a picture of how these gangs operate. 80% of UK tradespeople have experience tool theft but 25% of them did not report it.
- Do not confront thieves. If a crime is in progress or anyone is in danger, call 999.
- Report it to the police. Always report the theft to your local force and make sure you get a crime reference number. Report online if 101 is unavailable.
- Notify NCATT. Email ncatt@northumbria.police.uk with the subject line “Survey Theft Notification”, including the date, time and location of the incident (postcode or latitude and longitude), the type of incident, what happened, what was stolen (make, model, serial number, value) and its value, your crime reference number and the police force dealing with it. The “Report a theft” link on the GSA website opens a pre-filled email to make this easy. Every report helps NCATT understand the scale of the problem and push for further action on behalf of the profession. Copy in your equipment supplier.
- Write to your local MP. Cite the crime reference number, tell them about 80% of tradespeople being affected, request they raise the issue in Parliament and with the Home Office. Copy the letter to your Police and Crime Commissioner.
- Engage with your Chief Constable. Log a formal report to your Chief Constable’s office, provide a pattern of incidents with dates, locations, asset types and values. Reference the Met Police’s dedicated tool theft roundtable as precedent.
- Contact your insurer as soon as possible, with your crime reference number and equipment records.
Every report matters. Individually, a stolen instrument can feel like an isolated incident. Collectively, the information members share through NCATT helps specialist officers link crimes, identify the gangs behind them and recover stolen equipment.
