Third Arrest Made in Lisa Dorrian Murder Investigation

A third person has been arrested in connection with the disappearance and presumed murder of Lisa Dorrian, a 25-year-old woman from Bangor, County Down, Northern Ireland. Dorrian was last seen alive on February 27, 2005, after attending a party at Ballyhalbert Caravan Park .

Despite extensive searches and campaigning by her family, Lisa Dorrian’s body has never been found. Police believe she was murdered on the night of February 27th or in the early hours of the following morning .

Recent Developments

On Wednesday, March 4, 2026, a 40-year-old man was arrested in Millisle, County Down, on suspicion of assisting offenders and withholding information . This arrest follows the arrests last week of a 40-year-old woman in Bangor and a 42-year-old man in Scotland.

Both the woman and the man previously arrested were held on suspicion of murder, assisting offenders, withholding information and preventing a lawful and decent burial before being released on bail pending further inquiries , .

Police Statement

Detective Chief Inspector Kerrie Foreman stated that the most recent arrest comes just “days after the 21st anniversary of Lisa’s disappearance and murder.” She emphasized the enduring pain for Lisa’s family and reaffirmed the police’s unwavering determination to seek justice .

“It’s been 21 long and painful years for Lisa’s loving family,” she said. “They have never given up their search for answers and justice and, likewise, our determination remains steadfast.”

Background

Lisa Dorrian was last seen after attending a house party at a caravan park in Ballyhalbert, County Down . Prior to her disappearance, she had spent time socializing in Groomsport and Ballywalter . Police investigations have included numerous searches and examinations of potential crime scenes, but no trace of Dorrian has been found .