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.

People walking under binary code

Register your interest to attend the first seven weeks of Phase 5 and 6 hearings here.

The witness timetable for Phase 5 and 6 is available here.

Remote video URL

From February to May 2022, the Inquiry held Human Impact Hearings in London, Cardiff, Leeds, Glasgow and Belfast. During the Human Impact phase, 189 affected sub-postmasters, managers, assistants or family members shared their experiences with Sir Wyn either through oral evidence, witness statements or online Focus Groups.

More information, as well as full hearing videos and witness statements, are available on our Human Impact webpage.

Public Hearings Timeline

Indicative timeline for phases of the Inquiry.

Wellbeing and Support

Read about how you can receive support from the Inquiry if you are participating.


Find video recordings and transcripts of public hearings

Latest news from the Inquiry

Phase 5 and 6 to open with evidence from former sub-postmaster Alan Bates

27 February 2024

Inquiry publishes video on experiences shared during human impact phase

20 February 2024