To ask the Secretary of State for the Home Department how many prison informants (a) self-harmed and (b) committed suicide (i) whilst detained in prison and (ii) after leaving prison in each of the last five years; and if he will make a statement.

It is not Prison Service policy to confirm or deny details on the use of covert human intelligence sources.

In any event, information about self-harm and deaths amongst prisoners or people released from prison is not collated centrally in the requested format and could be obtained only at disproportionate costs.