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Welcome to HMI Prisons.

We help to make sure that detention in the UK is humane, decent and prepares people for returning to society.


Desperate times for prisons

Against the backdrop of the growing prison population crisis, the 2023-24 annual report of HM Chief Inspector of Prisons paints a devastating picture of what is happening inside our jails.



Trust is at the heart of Oakwood’s success, and prisoners are given opportunities and freedoms that might frighten staff in other jails. But this is not just given out, it has to be earned. There are many incentives for doing the right thing at the prison, but those who break the rules are robustly dealt with. With courage and leadership there is little at Oakwood that could not be achieved elsewhere.
Charlie Taylor, HM Chief Inspector of Prisons

It is a rarity at the moment to publish an inspection report that notes strong leadership, low levels of self-harm, excellent time out of cell and calm and clean wings where prisoners are trusted to cook for themselves.

Perhaps surprisingly, this isn’t a report on an open prison… Rather, this is the reality of the units holding the most dangerous prisoners in England and Wales.
Charlie Taylor, HM Chief Inspector of Prisons

Graphic showing images related to the Improving behaviour in prisons thematic review.

Improving behaviour in prisons

These are challenging times for prisons, but some have created cultures that encourage prisoners to take part in employment and education that should help them to secure employment on their release.


Find out more about the different areas of our work

Men’s prisons

We inspect every type of men’s prison in England and Wales, from high security to open prisons, private and public sector. Find out about how we inspect and read our reports on men’s prisons.

Women’s prisons

Women make up less than 4% of the prison population. Read our Expectations for the treatment of and conditions for women, and our reports on women’s prisons.

Children’s detention

We inspect each establishment in which children are detained every year either for a full inspection or an independent review of progress. Read our reports on detention for children.

Immigration detention

Read reports on our inspections of different types of immigration detention: immigration removal centres, short-term holding facilities and escorted flights removing people from the country.