§ Mr. Bercow
To ask the Deputy Prime Minister what additional security measures are planned by his Department to deter and detect theft and fraud. 
§ Mr. Leslie
A number of baseline security measures exist to try to reduce the likelihood that thefts will occur and to limit the scope for fraud. Chiefly, these are centred on detecting those with likely criminal intent through effective vetting procedures and denying them access to our buildings through effective access control procedures.
Whenever theft has occurred, or fraud is suspected or has been detected, an internal investigation is conducted by departmental security staff. Where appropriate, the police subsequently become involved.