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The National Vehicle Threat Mitigation Unit (NVTMU) is a specialised police unit operating within the National Counter Terrorism Security Office (NaCTSO).

Made up of subject matter experts, the unit have a wealth of experience in the deployment of temporary vehicle security barriers; they understand the methodology behind Vehicle…
This advice will provide advice to security managers of Venues and Public Spaces following a change of the threat level to CRITICAL. There are a number of operational and tactical options to consider.
Physical security technologies often converge into a security control room and, while individual technologies may be working, the control room may not be effectively using this information.
Good housekeeping is an important part of your security regime, helping to reduce the opportunity for placing suspicious items or bags and helping to deal with false alarms and hoaxes.
A well-run control room can provide the fundamental principles of Deter, Detect and Delay.
1. Introduction

The UK is the heaviest user of ammonium and ammonium nitrate-based fertilisers in the world and since the 1970s, nitrogenous fertilisers have been misused to make home-made explosives. The blending, storage, transport and use of…

This document outlines a set of options which can be used by the private sector and security industry to enhance the wider national security posture at times of raised threat or in response to a terrorist incident.
Implementing the SCA should lead to fewer security-related changes being required at a later stage. It also reduces the chance of repeating mistakes that may have compromised security in the past.
A gunshot detection system is typically comprised of one or more sensors (optical and/or acoustic) that accurately and reliably detects live ammunition (gunshots) being discharged.
Active access delay systems seek to disorient and delay attackers.