Question to the Home Office:

To ask the Secretary of State for the Home Department, how many crime investigations were closed by the police in 2025 because the suspect was too ill to prosecute, broken down by (a) whether the illness recorded was (i) mental ill-health, (ii) physical illness and (iii) other and (b) index offence group.

The Home Office collects and publishes information on the number of crime investigations closed by the police because the suspect was too ill to prosecute.

This information is published by offence group on a quarterly basis as part of the official statistics on crime outcomes including a break down by the principal offence group. Information for the 2025 calendar year was published here:

Crime outcomes year to December 2025: data tables - GOV.UK

However, the Home Office does not hold information on the type of illness recorded in these cases.