Smash-and-Grab Raids Are Up 50%.
Here's the Deterrent That Stops Them.
Armed and organised smash-and-grab raids on UK jewellers have risen sharply. Density security fog deploys in 3 seconds — filling your showroom floor before any raider can reach a display case, load stock, or exit. Density is approved to be used in conjunction with NSI and SSAIB security systems, .
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Smash-and-Grab Raids:
UK jeweller raids have risen 50% year on year. Organised criminal gangs can smash a display case and clear its contents in under 60 seconds — far faster than any alarm response or police attendance. Passive CCTV and standard alarms record the crime; they don't stop it.
Specialist Insurance Conditions:
Most specialist jewellery insurance policies now require active security, approved for use with NSI and SSAIB systems, as a condition of cover for high-value stock. Without the right active-security layer, a single raid can result in a disputed claim — or full policy exclusion. NSI certification is not optional for this sector; it is the baseline.
High-Value Portable Stock:
Jewellery is uniquely attractive to thieves: extraordinarily high value relative to volume, easily concealed, and rapidly converted. Display cases concentrate thousands of pounds of stock in an instantly accessible location — making every unprotected jeweller a target every night they are closed.
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Security Fogging — How It Works
Comprehensive Security for Jewellers & Showrooms
Jewellers face a uniquely acute security challenge. High-value stock concentrated in glass display cases, visible from the street, in premises open to the public by definition — it is a combination that organised criminal networks actively exploit. The modern smash-and-grab raid is a practised, timed operation: entry is forced, cases are targeted within seconds, and exit is completed before most alarm systems have even finished dialling an ARC. By the time police arrive, the raiders are gone. Density's security fogging technology is built specifically to close this window of vulnerability.
Density fog generators deploy a dense physical barrier of security fog within 3 seconds of intrusion detection — immediately eliminating visibility across the showroom floor and disorienting any intruder before they can reach a display case, select stock, or move toward an exit. Unlike passive CCTV and standard PIR alarms, Density provides active deterrence: the raid cannot continue in zero visibility, and in the overwhelming majority of cases, intruders abandon the attempt entirely. Density is approved to be used in conjunction with NSI and SSAIB security systems, a Density installation satisfies the active-security conditions that most high-value jewellery policies now require.
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Why Jewellers Rely on Active Deterrence
A smash-and-grab raid on a jeweller is over in under a minute. Standard alarm and CCTV systems trigger after entry — by which point a raider is already at a display case. Density's security fogging technology changes this entirely: the moment an intrusion is confirmed, a physical barrier of dense fog fills the showroom floor in 3 seconds, making it impossible for any intruder to see a display case, identify a target, or navigate toward an exit. The raid cannot continue. In zero visibility, it stops.
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Lightning-fast deployment — <1s to activate
Density fog fills your showroom in 3 seconds — faster than a raider can reach the first display case after forced entry. The barrier is physical, not electronic, and cannot be bypassed or switched off from outside.
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NSI and SSAIB approved systems
Density is approved to be used in conjunction with NSI and SSAIB security systems — the standard explicitly required by most specialist jewellery insurance policies. Installation satisfies the active-security conditions insurers expect.
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Proven abandonment effect
Organised raid teams identify protected premises in advance. The visible presence of a Density unit and warning signage causes the majority of planned attacks to be abandoned before entry is even attempted.
Key Benefits at a Glance
Lightning-Fast Deployment — <1s to Activate
Fog fills your showroom floor faster than a raider can reach a display case after forced entry.
Approved in use with NSI and SSAIB security systems — Insurance Recognised
Satisfies specialist jewellery insurance conditions. Helps removes coverage exclusions.
Integrates with Existing Alarms
Works alongside your monitoring station or existing alarm panel — no new infrastructure required.
Safe for Gemstones & Metals
Non-toxic, non-corrosive fog fluid is safe for all jewellery materials, display cases, and stock — no residue.
UK-Wide Installation Network
Approved partners cover the whole UK for installation and servicing, including South East, East-Midlands, and Scotland.
Case Study
Independent Jeweller, West Midlands
"We suffered two break-ins in 18 months. Since Density we've had zero incidents and I can sleep easier at night."
— A Khan, Business Director, West Midlands.
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Frequently Asked Questions
Yes. A practised smash-and-grab team typically takes 30–90 seconds from first entry to exit. Density fog fills a standard jewellery showroom in 3 seconds from the moment the system is triggered — before any raider can reach a display case, identify target stock, or load anything.
In zero visibility, the raid cannot continue. Analysis of premises protected by active fogging systems shows that in the vast majority of cases, intruders abandon the attempt immediately on deployment.
No. Density uses a non-toxic, non-corrosive, water-based fog fluid that is completely safe for all jewellery materials — including gold, silver, platinum, gemstones, diamonds, pearls, and all common alloys. It is equally safe for display cases, glass, LED lighting, and electronic point-of-sale equipment.
The fluid dissipates naturally within 30 to 60 minutes without leaving any residue, and does not require specialist clean-up. It is CE-certified and tested to applicable EN standards.
Yes. Active security approved for use with NSI and SSAIB systems is explicitly required or strongly preferred by most specialist jewellery insurance policies for high-value stock cover. Without NSI or SSAIB - approved active security, many policies carry exclusions for smash-and-grab losses or require a higher excess.
Density is approved to be used in conjunction with NSI and SSAIB security systems.
Yes. Density fog generators connect via a standard relay output on your alarm panel, working alongside the vast majority of alarm systems used in UK retail and jewellery environments. No new infrastructure is required — a Density-approved engineer will connect the unit during installation, typically completed within a single day.
The system can be triggered automatically on confirmed alarm activation, via your ARC monitoring station for remote deployment, or via a hardwired panic button for use during manned raids.
Yes. Density systems can be connected to a hardwired panic button — allowing staff to trigger fog deployment manually during a manned or armed raid. This is a specific consideration for jewellers, where raids sometimes occur during trading hours.
The panic trigger is configured separately from the alarm-activated trigger, and can be installed at a discreet location — typically behind the counter or in a back office — allowing activation without alerting the raider. Density will advise on the most appropriate panic trigger configuration for your specific premises layout during the site survey.
Cost depends on three main factors: the Density product specified (UNIK for individual display zones, Basic for standard retail floors, Lite for larger showrooms), the number of zones or areas to protect, and the complexity of integration with your existing alarm system.
A free site survey — provided at no charge and with no obligation — is the most accurate way to produce a costed proposal for your specific premises.