HC Deb 27 March 1986 vol 94 c541W
Mr. Tony Banks

asked the Secretary of State for the Home Department if he is considering using dye or antiriot irritant in the water during the testing of water cannon by the Metropolitan police force; and if he will make a statement.

Mr. Giles Shaw

Tests will concentrate on the use of the two prototype water cannon with plain water but will also include consideration of how additives might be used.