Police cordons

Semi-permissive - risk persists but the direct threat is absent (warm zone). Minimal care necessary to save life should be provided, under instruction from the relevant commander and ideally by specially trained personnel only. This area is within the police cordon and when treatment is necessary, an escort should be provided. 

In chemical agent releases, the analogue to this protective cordon is determined by the fire services or HAZMAT specialists but is again enforced and controlled by the police who act under fire and rescue guidance about the hazards involved, based upon detection and identification procedures described earlier. The principal purpose of this cordon is to permit rescue and life support for casualties as early as possible but with an emphasis on protecting emergency responders becoming the next casualties from the toxic release. 

The outer cordon surrounds the silver area and thus also contains the bronze area or areas. Within the silver area are the elements of the emergency services response, including the command centre and the casualty clearing station. Access through the outer cordon will be controlled by the police and limited to those who have a legitimate reason to be there as well as suitable professional identification, i.e. medical badge/British Association for Immediate Care (BASICS) card, etc. 

The police have initial responsibility for safety within the inner cordon at any terrorist event in order to ensure that any terrorists have been identified and disarmed and secondary devices have been identified and made safe. 

This area is within the police inner cordon and remains an area of some risk. Entry by health services personnel should only be under... 

The establishment of an effective cordon is an important component of command and control as well as a vital step in ensuring scene safety and reducing the risk of injury and/or contamination to bystanders or spectators. The police will usually be responsible for maintairiing all cordons. 

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