Sector reference · Updated 7 August 2026
Drone surveys for public safety & Martyn's Law
Aerial site surveys and 3D models for venues preparing for Martyn's Law Enhanced Tier obligations — measurable, defensible data for vulnerability assessments, evacuation planning and crowd management.
Short answer
Image Surveys Limited (CAA Operator ID GBR-OP-K3GKP2JCP5DJ) provides aerial and survey data to venue operators, local authorities and public-sector estates who need accurate, measurable site documentation for Martyn's Law (Terrorism Protection of Premises Act 2025) compliance and wider public safety obligations.
The Terrorism Protection of Premises Act 2025 requires Enhanced Tier venues to conduct vulnerability assessments. Aerial survey provides the accurate site perimeter, approach routes, crowd flow geometry and standoff distances that a security adviser needs to complete that assessment — in days, not weeks. We deliver unified models, annotated site plans and orthoimages formatted for direct use by security consultants.
Who we work with
- Stadium and arena operators
- Conference and exhibition venues
- Theatres and live music venues
- Universities and college estates
- Local authorities and public sector bodies
- Hotels and large hospitality venues
- Outdoor event and festival organisers
- Places of worship — cathedrals, mosques, synagogues
Problems we solve
- Vulnerability assessment data for Martyn's Law Enhanced Tier premises
- Measurable site plans for evacuation, invacuation and muster point planning
- Perimeter, approach route and queue geography for crowd management
- CCTV coverage analysis and sightline blind spot identification
- Hostile vehicle mitigation planning with accurate standoff distances
- Counter-drone detection and threat assessment for sensitive public venues
Case study
North West England
Venue Site Survey for Martyn's Law Compliance Planning
A large publicly accessible venue with Enhanced Tier obligations under Martyn's Law required accurate site documentation — including external perimeter, approach routes and internal floor plans — to support a vulnerability assessment and evacuation plan. Traditional survey methods could not capture the full site scope within the required timescale.
Frequently asked questions
What is Martyn's Law and who does it apply to?
The Terrorism Protection of Premises Act 2025 (Martyn's Law) places legal obligations on venues above certain capacity thresholds. Enhanced Tier venues (those with capacity of 800 or more) must implement security procedures and conduct formal vulnerability assessments. Venues in the standard tier (200–799 capacity) have lighter-touch registration and procedure obligations. The Act is named after Martyn Hett, who died in the Manchester Arena attack in 2017.
What aerial data supports a vulnerability assessment?
A vulnerability assessment for an Enhanced Tier venue requires accurate knowledge of site perimeter, approach routes, crowd flow geometry, muster points, standoff distances and sightlines. Drone aerial survey provides all of this as a measurable, dated spatial dataset that a security adviser can use directly — rather than estimates from outdated plans or satellite imagery.
How quickly can you survey a venue?
External aerial survey of most venue sites can be completed in a single visit. Combined with internal LiDAR scanning, we typically deliver a complete unified dataset within five working days. We can work out of hours to minimise disruption to venue operations.
Related pages
Survey your venue
Tell us about your site and compliance timeline. We'll recommend the right data package and provide a fixed written quote.