Question to the Home Office:

To ask the Secretary of State for the Home Department, with reference to the urgent review of 33 cases launched by the Metropolitan Police over suspected mishandling of evidence in the forensic laboratory, what information his Department holds on (a) number of boroughs affected and (b) number of cases involving on offender under 18 years old.

The Home Office does not hold information on either a) the number of boroughs affected and b) the number of cases involving an offender under 18 years.