HC Deb 16 May 1985 vol 79 c172W
Mr. Sumberg

asked the Secretary of State for the Home Department how many detector vans are used by the Post Office for the purpose of detecting those who have not paid their television licences in the Greater London area and in each of the six metropolitan counties.

Mr. Giles Shaw

The 22 detector vans are available for use throughout the country, though at any one time they may all be concentrated in a particular metropolitan or other area.