Read summaries of upheld and partially upheld investigations into complaints on this page. We keep information brief to protect the identities of people involved and we may decide not to publish a summary if the person making the complaint might be identified from it. Please visit our archive site to view complaint summaries published before February 2024.
Every month we publish statistics about the number of investigations we have completed and our decision for each one.
Use the search box below to search complaints by prison name or location.