HC Deb 26 June 1962 vol 661 c138W
Mr. J. Harvey

asked the Secretary of State for the Home Department what action is taken by the Metropolitan Police in respect of vehicles emitting undue quantities of diesel fumes.

Mr. R. A. Butler

Action is taken whenever there is sufficient evidence that the law has been broken, and in the first quarter of 1962 there were 37 convictions in the Metropolitan Police District.