A bid at Stormont to raise the minimum age of criminal responsibility in Northern Ireland from 10 to 14 has formally failed. Unionist parties used a cross-community veto mechanism known as a petition of concern to block the change, which had been proposed as an amendment to the Justice Bill.

The amendment, backed by Sinn Féin, the Alliance Party, and the SDLP, was designed to bring Northern Ireland into line with United Nations recommendations. The UN body monitoring children's rights has urged countries to set the age at no lower than 14. Currently, 10 is one of the lowest ages of criminal responsibility anywhere in the world.

On Tuesday, the legislation returned to the Assembly floor after a required 14-day consideration period, triggered when 30 MLAs from at least two parties signed the petition of concern. The final vote saw 32 nationalist MLAs and 16 Alliance MLAs support the rise, but 34 unionist MLAs voted against it. Because Alliance members are designated as "Other", their votes did not count toward the cross-community support threshold, which requires a weighted majority including at least 40 percent of both unionist and nationalist members voting.

The Democratic Unionist Party, Traditional Unionist Voice, and four Ulster Unionist Party MLAs had argued that increasing the age in all but the most serious offences such as murder and rape was a step too far. A separate proposal from People Before Profit MLA Gerry Carroll to raise the age to 16 also failed to pass.

The petition of concern was introduced under the Good Friday Agreement as a safeguard for minority rights, but its use has drawn criticism for deviating from that purpose. It allows a bloc of 30 MLAs to require a cross-community vote, effectively giving unionists or nationalists a veto.

In a related development, the Bar Council of England and Wales published a report endorsing an increase of the minimum age to 14 with no exceptions. It noted that 14 is the most common threshold internationally and that very few children in the 10-14 age group receive custodial sentences. Bar Council chairwoman Kirsty Brimelow acknowledged that the debate revives memories of the James Bulger case but stressed that such events are exceptionally rare.

UUP MLA Burrows countered that the drive to raise the age is ideological and fails to address practical policing questions. He argued that raising the threshold would prevent police from gathering evidence or arresting suspects under 14, even for serious offences, and would deny victims a justice outcome. He said that no satisfactory answers had been provided to these concerns.

The Department of Justice found strong support for raising the age in a 2023 public consultation. Scotland raised its age from 8 to 12 in 2019, while the Republic of Ireland sets it at 12. In England and Wales, the age remains 10, and the Ministry of Justice has said no decision has been taken to change it.