HC Deb 13 June 1973 vol 857 c331W
Mr. Rose

asked the Minister of State for Defence what study has been undertaken on the long-term effects of new gases produced by his Department for riot control.

Mr. Ian Gilmour

A programme of evaluation of CR has been in hand for several years and has included studies to determine whether there might be any long-term effects. The results have given no cause for concern.