Welcome to the Post Office Horizon IT Inquiry website

This is an independent public statutory Inquiry established to gather a clear account of the implementation and failings of the Horizon IT system at the Post Office over its lifetime.

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About the Inquiry

Read more about the Inquiry, the Chair and the Team that will be responsible for the Inquiry.


Read the latest news and press releases from the Inquiry.


See the latest publications and releases from the Inquiry.

Latest news from the Inquiry

The Inquiry today published a Protocol for Warning Letters pursuant to The Inquiry Rules 2006. The Inquiry Rules ensure that anyone who faces criticism is given a fair opportunity to respond to it. 

The Inquiry Chair's Statement on the Appointment of Governance Assessor.

The Inquiry publishes a General Restriction Order relating to the disclosure or publication of any evidence or documents given, produced or provided to the Inquiry.