Taoiseach Micheál Martin delivered a formal State apology to the family of murdered prison officer Brian Stack on October 21, 2026, for “serious failings” in Garda investigations into his death. The apology, made in the Dáil chamber, acknowledged that Mr. Stack and his family were “badly failed by the investigation into his killing”. This action marks a significant step towards accountability for a decades-old murder case that has been fraught with investigative shortcomings.

This official apology from the Oireachtas, the first of its kind in this case, offers comfort to the victim's family after years of seeking answers. It highlights systemic issues in the initial and subsequent inquiries into Mr. Stack's murder, which remained unsolved despite multiple investigations.

What the records show

Records indicate that Brian Stack, a chief prison officer, was shot in the neck by the Provisional IRA in March 1983 and died 18 months later, on September 29, 1984, at the age of 49. He was the only prison officer murdered in the State during the Troubles. Taoiseach Martin outlined specific errors in the Garda investigations. These included a failure to preserve a map of the crime scene and a motorbike helmet found near it. Key exhibits, such as samples, debris, and fingerprints, were not properly retained. The original investigation also lacked documentation regarding whether an identification line-up was conducted or if prisoners at Portlaoise Prison were interviewed. A 2007 Garda Serious Crime Review identified 202 recommendations related to the case, confirming serious failings. Former Garda Commissioner Drew Harris admitted these omissions in 2019.

The Timeline

Brian Stack was attacked on March 25, 1983, as he left a boxing tournament at the National Stadium in Dublin. He survived the shooting but was left paralyzed and brain-damaged. He died from his injuries on September 29, 1984. In 2013, the Provisional IRA admitted responsibility for the killing to the Stack family. They stated the act was “not authorised by the IRA leadership” and that the volunteer responsible was disciplined. Following a 2019 apology from then Garda Commissioner Drew Harris, Taoiseach Micheál Martin delivered the formal State apology on October 21, 2026.

What changed and for whom

The State apology acknowledges official failures. This provides a measure of solace to Brian Stack's family. Austin Stack, Brian Stack's son, described it as a “deeply emotional day” and stated the apology brought “great comfort to our family, particularly our mother”. He called it a “very significant step towards accountability”. The apology follows years of campaigning by the family for recognition of the investigative shortcomings.

What the subject has said publicly

The Provisional IRA stated in 2013 that the killing was “not authorised by the IRA leadership” and that the volunteer who issued the instruction was disciplined. Taoiseach Micheál Martin emphasized that the Stack family was “badly failed by the investigation into his killing”. Justice Minister Jim O'Callaghan noted that the failure to document critical decisions and the loss of evidence had “undoubtedly hampered An Garda Síochána's efforts to bring those responsible to justice”.

What we could not confirm

We could not confirm the precise nature of the discipline imposed by the Provisional IRA on the volunteer responsible for the instruction to kill Brian Stack. The identities of the perpetrators of Brian Stack's murder remain unknown, as no one has been found responsible for the killing. The full details of the “live lines of inquiry” currently being pursued by An Garda Síochána were not specified.