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UnassignedRoyal AssentAct of Parliament
View on Parliament.uk

Post Office (Horizon System) Offences Act 2024

Originating House

House of Commons

Parliament last updated

2 October 2024

In Plain English

AI-generated

May contain errors — check source documents for definitive information.

This Act creates offences related to the Horizon computer system used by the Post Office and sets out ways to remedy past injustices, including the power to quash wrongful Horizon-related convictions. It also extends these rules to Northern Ireland, clarifies how cautions are treated there, and requires communicating compensation options when a caution is deleted. The bill includes NI-specific administration and practical safeguards for prosecutions spanning multiple periods.

Key Points

  • Creates or extends offences linked to the Horizon system across England, Wales and now Northern Ireland.
  • Allows for the quashing of Horizon-related convictions (for offences before the Act came into force).
  • Extends the framework to Northern Ireland, with NI-specific provisions on cautions and use of NI bodies (Department of Justice NI).
  • Clarifies that for cases spanning a period, the Horizon system need not have been used for the entire period to be relevant.
  • Requires notification of compensation schemes and heads of loss when a court or direction to delete a caution is involved; improves transparency for those affected.

Progress

The bill began in the House of Commons in March 2024, passed all parliamentary stages with NI-related amendments, and received Royal Assent on 24 May 2024, becoming law.

Voting

During the debates, the Conservative Party generally opposed the instruction vote referenced in Scotland, while other parties (such as DUP and SNP) supported the bill’s aims. Labour proposed amendments at one point, including a clause that was later withdrawn. The amendments largely reflected government-led counterparty changes to extend the policy to Northern Ireland.

Who is affected?

People wrongfully implicated or convicted due to Horizon system errorsPeople who faced Horizon-related cautions or chargesPost Office staff and contractors affected by Horizon issuesVictims and survivors seeking redress for Horizon-related injusticesFamilies and dependants of those affectedNorthern Ireland public authorities and the Department of Justice (NI)

Generated 21 February 2026

Bill Stages

1st readingCommons

13 Mar 2024

2nd readingCommons

20 Mar 2024

Programme motionCommons

20 Mar 2024

Money resolutionCommons

20 Mar 2024

Programme motionCommons

29 Apr 2024

InstructionCommons

29 Apr 2024

Committee of the whole HouseCommons

29 Apr 2024

3rd readingCommons

29 Apr 2024

1st readingLords

30 Apr 2024

2nd readingLords

13 May 2024

Committee stageLords

23 May 2024

Report stageLords

23 May 2024

3rd readingLords

23 May 2024

Consideration of Lords amendmentsCommons

23 May 2024

Royal AssentUnassigned

24 May 2024

Royal Assent

Amendments (75)

38 agreed18 not selected10 not called7 not moved1 pending1 withdrawn

Showing agreed, defeated, and withdrawn amendments.

How Parties Are Voting

Based on 1 recorded vote • Sorted by % Aye

Democratic Unionist PartyGenerally For
5 / 0
Scottish National PartyGenerally For
4 / 0
ConservativeGenerally Against
0 / 74
Reform UKGenerally Against
0 / 4
Labour (Co-op)Mixed
0 / 0
Social Democratic & Labour PartyMixed
0 / 0
Liberal DemocratMixed
0 / 0
Plaid CymruMixed
0 / 0
IndependentMixed
0 / 0
Sinn FéinMixed
0 / 0
SpeakerMixed
0 / 0
Your PartyMixed
0 / 0

Parliamentary Votes (1)