Assaults on staff per 1,000 prisoners

Assaults in prison custody cover a wide range of violent incidents including attacks on staff.

From time to time, events in prison custody and developments within and outside Ministry of Justice have changed the way safety in prisons is viewed and managed. Some have resulted in changes to the way offenders are managed, others have affected the way statistics are collected and reported.

The data source is for the summary is safety in custody statistics (quarterly), and the data source is for the details below is prison performance ratings (annual).



  • Data is not always available for, or applicable to, every prison; and the list of prisons will vary year on year due to closures and newly opened establishments;
  • Prison functions (Male Local etc.) refer to the function of the prison in the most recent year shown. The function of a prison may have been different in previous years;
  • A small number of prisons which are listed separately in the above table are physically co-located and cannot be distinguished on the map;
  • Contains OS data © Crown copyright and database right 2019;
  • Contains Royal Mail data © Royal Mail copyright and database right 2019;
  • The markers on the map are indicative only. For further information on a prison, or for details of a prison's location, please consult the Ministry of Justice prison finder.