Northern Ireland's Court of Appeal has dismissed a sentence appeal brought by Barry Maguire, an Omagh man convicted of a domestic abuse offence and five counts of non-fatal strangulation or asphyxiation, while issuing revised guidance on how judges must calculate sentences in domestic abuse cases going forward.

Maguire was sentenced on 23 October 2025 by His Honour Judge Sherrard to a total determinate custodial sentence of five years, split equally between custody and licence. He had pleaded guilty to six counts on 8 May 2025, having initially pleaded not guilty at arraignment on 18 September 2024 and been due to stand trial on 12 May 2025. The domestic abuse offence under section 1 of the Domestic Abuse and Civil Proceedings Act (Northern Ireland) 2021 attracted a five-year term, with the five strangulation offences under section 28 of the Justice (Sexual Offences and Trafficking Victims) Act (Northern Ireland) 2022 drawing four years each, plus a concurrent 12-month uplift on each to reflect the statutory domestic abuse aggravator under section 15 of the 2021 Act.

The offences took place between July and November 2023 during a relationship that began at a facility for people dealing with alcohol problems. Police attended a property in Omagh on 30 November 2023 following a report from a neighbour. The complainant was found with visible marks to her throat and bruising across much of her body at varying stages of healing. She was admitted to hospital. Officers had to force entry to arrest Maguire. His bank card belonging to the complainant was found on his person. Police later recovered footage from his mobile phone of the complainant eating food from the floor. The prosecution described a pattern of behaviour including verbal degradation, calls of up to 30 per day, a break-in to the complainant's home, repeated strangulation and asphyxiation, and unauthorised access to and removal of money from her bank account.

Maguire appealed on the grounds that the sentence was manifestly excessive, arguing principally that the domestic abuse aggravator uplift should have attracted a reduction to reflect his guilty plea, and that Article 33 of the Criminal Justice (Northern Ireland) Order 1996 required such a reduction to be applied. The appeal was heard before the Lady Chief Justice Keegan, Lord Justice McCloskey and Mrs Justice McBride.

The court dismissed the appeal but found that the sentencing judge had applied an incorrect methodology, derived from the earlier Court of Appeal decision in R v Haughey [2025] NICA 10. In Haughey, the court had treated the statutory domestic abuse aggravator as the final step in sentencing, meaning it did not attract any reduction for a guilty plea. The court in the present case found that approach to be inconsistent with Article 33 of the 1996 Order, which requires courts to take into account the stage at which a guilty plea was indicated. The comments on methodology in Haughey were found to have been made without full argument from either party and were characterised as obiter.

The revised methodology requires sentencing judges to: identify a headline sentence for the lead offence after considering aggravating and mitigating factors; add any increase for the domestic abuse aggravator, taking care to avoid double counting; and then apply any reduction for a guilty plea at the end of that process. Applying this approach, the court calculated a starting point of five and a half years, plus 12 months for the aggravator, giving six and a half years before a guilty plea reduction. With a late plea attracting a reduction of 25%, the resulting sentence came to approximately four years and ten and a half months - marginally below the five years imposed by the judge. The court found the five-year sentence was therefore not manifestly excessive.

The court affirmed the broader guidance in Haughey on deterrent sentencing for non-fatal strangulation and domestic abuse offences, including the need to identify the statutory aggravator explicitly. The revised methodology on guilty plea reductions is now to be applied by all sentencing judges in Northern Ireland.