§ Mr. Singh
To ask the Chancellor of the Exchequer (1) how many operations were carried out by officers of Her Majesty's Customs and Excise concerning heroin imported from Pakistan in controlled deliveries; and how much heroin was imported in respect of each operation, in each year between 1 January 1990 and 1 January 2000; 497W
(2) how many operations involving controlled imports of illegal drugs by officers of Her Majesty's Customs and Excise there were in (a) each year between 1 January 1990 and 1 January 2000 broken down by quantities and types of illegal drugs and (b) between 1 January 1997 and 1 January 1998, involving heroin imported from Pakistan and if he will specify the quantities. 
§ Dawn Primarolo
It is not Customs policy to release information of this type which could compromise a key operational technique.