HC Deb 15 May 1987 vol 116 c373W
Mr. Tony Banks

asked the Prime Minister how much has been paid by her office for services provided by private security companies in each of the past five years.

The Prime Minister

Nearly all security work for which my office pays is handled by other Government Departments. It is not possible to identify without disproportionate cost those items of work which have been carried out by private security companies on their behalf.