Detectives Make Further Arrest in Lisa Dorrian Murder Investigation

Police investigating the disappearance and murder of Lisa Dorrian have arrested a 40-year-old man in Millisle on suspicion of assisting offenders and withholding information. The arrest comes shortly after the 21st anniversary of her disappearance. Detectives continue to appeal for information from the public.

Arrest Made in Lisa Dorrian Murder Investigation

Detectives from the Police Service of Northern Ireland Major Investigation Team have made a further arrest in connection with the disappearance and murder of Lisa Dorrian.

A 40-year-old man was arrested in Millisle on Wednesday 4 March 2026. He has been detained on suspicion of:

• Assisting offenders
• Withholding information

The arrest forms part of the ongoing investigation into the case, which has remained one of Northern Ireland’s most high-profile unsolved murder inquiries.

Police Appeal for Information

Detective Chief Inspector Kerrie Foreman said the latest development comes just days after the 21st anniversary of Lisa Dorrian’s disappearance.

She said:

“The arrest comes days after the 21st anniversary of Lisa’s disappearance and murder.

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

Police have renewed their appeal for anyone with information to come forward.

Anyone with information can contact the PSNI by calling 101.

Information can also be provided anonymously through the charity Crimestoppers:

• Phone: 0800 555 111
• Online: https://www.crimestoppers-uk.org

Previous Arrests in the Case

The latest arrest follows earlier developments in the investigation.

On Wednesday 25 February, police arrested:

• A 40-year-old woman
• A 42-year-old man

They were arrested on suspicion of:

• Murder
• Assisting offenders
• Withholding information
• Preventing a lawful and decent burial

Both individuals were later released on bail pending further enquiries.

One of Northern Ireland’s Longest-Running Murder Investigations

The disappearance of Lisa Dorrian remains one of the most significant unresolved cases in Northern Ireland.

The 25-year-old from County Down vanished in February 2005, and despite extensive investigations over the years, her body has never been recovered.

Police say the investigation remains active and continue to urge anyone with information, no matter how small it may seem, to come forward.