Protect & respond · Feature guide

CCTV tailgating detection for access control

When two people pass through an entrance close together, a camera can flag the movement for review. To determine whether the second entry was unauthorised, your team may need to compare the video with access-control events. Counting movement and checking permission are different tasks.

Illustration of two office employees following through one access gate with one card event
AI-generated illustration of tailgating detection. The scene and overlays explain the concept; they are not a PGAK screenshot or measured result.

How it works

Flag people or vehicles crossing a monitored boundary close together.

Where it could help your business

Review closely spaced entries at a controlled office entrance.

Test real entrance behaviour: visitors carrying bags, staff holding doors, deliveries and shift changes. Agree how close entries must be to trigger a review. Where possible, show the relevant access event and camera clip together.

What your camera setup needs

Camera events need access-control context to determine authorisation. Close movement alone is not proof of a breach.

Does tailgating detection stop someone entering?

Detection by itself only identifies an event. Physical prevention requires appropriately designed access hardware and a response process.

Check it on your own site

Bring a camera model list and explain the event you want to find or detect. We can use that to scope a compatibility assessment. Ask for a written proposal naming the supported functions, processing hardware, licences and pilot checks before agreeing to an installation.

Check my camera setup →