asked the Secretary of State for the Home Department on what occasion since February 1974 the Metropolitan Police have been instructed not to prosecute persons against whom they had evidence of criminal action involving violence.

None. I have no power to give such instructions.

asked the Secretary of State for the Home Department what instructions have been given to the Metropolitan Police since February 1974 with regard to the identification of subversive and revolutionary groups advocating the use of intimidation and violence to achieve their ends.

None. This is an operational responsibility of the Commissioner of Police of the Metropolis.