§ Mr. Jenkin
To ask the Secretary of State for Defence whether armed forces personnel deployed to secure London Heathrow airport have been deployed with suits and respirators in preparation for a possible chemical, biological, radiological or nuclear attack. 
§ Mr. Ingram
The deployment of the armed forces and their equipment is determined by a number of factors including the task to be undertaken, the environment in which they are to operate and the threat that they face. In the case of the recent operation at Heathrow airport, the police and military personnel were not deployed with Chemical, Biological, Radiological or Nuclear equipment.