To ask the Secretary of State for Defence what research his Department has conducted on the likely magnitude of an electromagnetic pulse weapon attack upon the UK and the consequences of such an attack. (319897)

The Ministry of Defence has undertaken electromagnetic pulse research in a number of areas. This information is being withheld for the purpose of safeguarding national security.

I also refer the hon. Member to the answer given to him by my hon. Friend the Minister of State for the Home Department (Mr. Hanson) on 3 March 2010, Official Report, column 1282W.