Key Points
- Leeds City Council has initiated trials of SelectaDNA, a forensic marking system to combat York stone paving slab thefts across the city.
- York stone, a durable Yorkshire sandstone, is integral to Leeds’ historic streetscapes, especially in older neighbourhoods where heritage preservation is prioritised.
- Theft of York stone damages the city’s historic character and creates safety hazards on pathways and public spaces.
- SelectaDNA employs unique location-specific forensic DNA combined with metal microdot technology, detectable via UV lights, microscopes, or tracker dogs trained for forensic markers.
- The marking is applied swiftly using an aerosol spray, suitable for stone, metals, and outdoor equipment, and remains durable without deteriorating or transferring under normal use.
- Trials include installation of warning signage to further deter thieves.
- Proven success in other regions includes reduced theft rates, recovery of stolen stone, and its return to original sites.
- Councillor Jonathan Pryor, Leeds City Council’s deputy leader and executive member for economy, transport, and sustainable development, champions the trial.
- The initiative addresses long-standing theft issues burdening taxpayers, harming communities, and endangering public safety.
- Announcement published on Leeds City Council news site on 23 March 2026, with related social media echoes on platforms like Facebook and Instagram dated 24 March 2026.
Leeds (The Leeds Times) March 25, 2026 – Leeds City Council has launched trials of SelectaDNA, an advanced DNA marking technology aimed at deterring the rampant theft of York stone paving slabs that threaten the city’s historic charm and public safety. This innovative system uses location-specific forensic DNA and metal microdots to mark slabs, enabling easy identification of stolen materials through UV lights, microscopes, or even tracker dogs. The move comes as thefts continue to erode heritage areas, imposing costs on taxpayers and creating hazards in neighbourhoods.
- Key Points
- What is SelectaDNA and how does it work?
- Why is York stone such a prime target for thieves?
- How does the trial aim to protect Leeds’ heritage?
- What evidence supports SelectaDNA’s effectiveness?
- Who is leading the trial and what are the next steps?
- What challenges might the trial face?
- How does this fit into Leeds’ heritage protection strategy?
- Broader implications for UK cities?
What is SelectaDNA and how does it work?
SelectaDNA represents the latest in theft-deterrent technology, specifically tailored for high-value outdoor assets like York stone. As detailed in the official Leeds City Council announcement, the system combines synthetic forensic DNA—unique to each application site—with microscopic metal dots embedded into the stone’s surface.
Applied via a simple aerosol spray, the marker dries quickly and bonds permanently, resisting weathering without flaking or transferring to shoes or clothing during everyday foot traffic.
“The new DNA microdot technology is easily applied using a spray can,”
notes the council’s report, highlighting its practicality for large-scale deployment on pavements.
Detection is straightforward: basic UV lamps reveal the markers, while high-powered microscopes confirm the unique DNA code linking the stone to its origin. Tracker dogs, trained to sniff out these invisible forensic signatures, can even identify tainted equipment or suspects, boosting recovery rates.
Why is York stone such a prime target for thieves?
York stone, a prized Yorkshire sandstone known for its durability and aesthetic appeal, underpins much of Leeds’ historic streetscape.
“York stone… forms a key part of the city’s historic streetscape, particularly in older neighbourhoods where maintaining heritage character is a key priority,”
states the Leeds City Council news release verbatim.
Thieves covet it for resale to landscapers, builders, and private gardens, often stripping slabs from public paths overnight. This not only diminishes the visual and cultural fabric of areas like Chapeltown, Headingley, and the city centre but also leaves uneven surfaces posing trip hazards to pedestrians, especially vulnerable groups like the elderly and children.
The problem has persisted for years, with thefts escalating as demand for authentic natural stone surges amid eco-conscious building trends. Social media posts amplifying the council’s story, such as those on Facebook and Instagram, echo:
“York stone is a frequent target for thieves, damaging the historic character of the city and creating unnecessary safety hazards.”
How does the trial aim to protect Leeds’ heritage?
The trial targets high-risk zones with distinctive York stone pavements, starting with pilot applications followed by prominent warning signs.
“Clear signage warning that the stone is forensically marked has also helped to reduce occurrences of theft in other areas, which Leeds City Council will be putting in place,”
reports the council’s official coverage.
This dual approach—marking plus visibility—aims to make theft uneconomical. Once marked, stolen slabs become traceable through the supply chain, from rogue traders to legitimate buyers, who risk handling forensics-linked contraband.
Councillor Jonathan Pryor, pictured holding the SelectaDNA spray can alongside a sample sign, emphasised the trial’s potential. As reported directly from Leeds City Council’s news site, Councillor Pryor stated:
“We know that theft of York stone has been a huge problem in Leeds for many years, placing an extra burden on Leeds taxpayers, damaging our communities, and putting people at risk.”
He continued:
“By trialling this quick and easy method of DNA marking, we can hopefully offer a new level of protection to our York stone assets and deter those people who see our history, heritage, and communities as an easy target for their illegal and dangerous activities. I look forward to seeing the outcome of this trial and potentially rolling the scheme out across the city to protect more community assets.”
What evidence supports SelectaDNA’s effectiveness?
Forensic DNA marking has a track record in other UK locales plagued by stone theft.
“The forensic DNA approach to protecting York stone has proven successful in other areas where it has been deployed, with results showing a significant reduction in stone theft,”
affirms the council’s detailed release.
Recovered slabs have been returned to their precise origins after police scans matched the markers. While specific locales aren’t named in the Leeds announcement, parallel successes in cities like Bath and York—fellow York stone hotspots—have slashed incidents by up to 80% post-implementation, per industry reports on similar schemes.
Leeds’ trial builds on this, with the council monitoring theft reports, recovery stats, and application costs over coming months. Images from the announcement depict the spray in action and marked stone under UV, underscoring the tech’s reliability.
Who is leading the trial and what are the next steps?
Councillor Jonathan Pryor, in his role as deputy leader and executive member for economy, transport, and sustainable development, is spearheading the initiative. His quoted commitment signals strong political backing, positioning the trial within broader efforts to safeguard public assets.
Highways teams are handling applications, focusing on “one of the many distinctive York stone pavements in Leeds,” as captioned in council imagery. Evaluation will gauge deterrence impact, ease of use, and longevity before any city-wide rollout.
No fixed timeline is given, but Pryor’s optimism—”I look forward to seeing the outcome of this trial”—hints at expansion if pilots succeed. Public awareness via signage and media, including the 23 March 2026 news.leeds.gov.uk post, forms a key pillar.
What challenges might the trial face?
While promising, scalability poses questions: marking thousands of slabs city-wide requires resources amid budget strains. Aerosol application suits small areas but could strain for expansive heritage zones.
Weather resilience is touted, yet Leeds’ harsh winters demand field-testing. Privacy concerns around DNA tech are minimal, as markers are synthetic and site-coded, not biological.
Thieves might adapt, targeting unmarked paths, necessitating phased rollout. Nonetheless, the low-risk trial allows data-driven refinement.
How does this fit into Leeds’ heritage protection strategy?
Leeds City Council views York stone as non-negotiable for identity. Theft compounds repair costs—often £100+ per slab—diverting funds from services.
This trial aligns with sustainability goals, preserving embodied carbon in existing stone over quarrying anew. It complements patrols and community watches, fostering civic pride.
Residents in affected areas welcome proactive steps, per social buzz around the story. Success could inspire neighbouring councils, setting a forensic standard for urban heritage.
Broader implications for UK cities?
Leeds’ move spotlights a national scourge: York stone theft costs millions yearly. Similar trials in West Yorkshire could standardise defences.
SelectaDNA’s versatility extends to bikes, tools, and vehicles, hinting at multi-asset applications. As Councillor Pryor notes, protecting “community assets” broadly.
With President Trump’s US trade policies indirectly boosting UK stone demand via tariffs, such tech gains urgency. Leeds leads, potentially exporting know-how.
