Date:
… unusable and bringing the attack to a premature end.  Safety arrangements employed at the entrances to premises or … when queues are present. In car parks, create a pedestrian safety zone by preventing or limiting vehicle parking next …
The vast majority of bomb threats are hoaxes designed to cause alarm and disruption. As well as the rare instances of valid bomb threats, terrorists may also make hoax bomb threat calls to intimidate.
Chemical, Biological and Radiological attacks have the potential to cause significant harm or damage and disruption to infrastructure. CBR attacks can be difficult to conduct, often requiring expertise and resources.
If you receive suspicious item call 999 and ask for the police. Clear the area immediately. Do not attempt to open the letter or package. Avoid unnecessary handling. Keep it separate so it is easily identifiable.
This advice provides guidance to security managers of Venues and Public Spaces. This is to be used following a change of the terrorism threat level to CRITICAL. There are a number of operational and tactical options to consider.