Police in the North of Ireland have issued a renewed appeal for information on the 20th anniversary of Lisa Dorrian's murder.

The 25-year-old went missing after attending a party at a caravan site in Ballyhalbert, County Down on February 29th 2005.

It is believed she was murdered that night or the following morning.

Lisa's body has never been found, despite extensive investigations and searches.

The PSNI has released CCTV footage and still photos which is the last known footage of Lisa in the days before her disappearance.

Still image: Shows Lisa enter Lock & Quay, Groomsport, in County Down (now Groomsport Inn) on the night of Friday 25 February 2005. Image: PSNI

Officers are urging anyone who can help them bring the murderer to justice to speak up.

“Despite hundreds of extensive search operations and thousands of lines of enquiries completed, Lisa’s body has not been found, and those responsible for her murder have not yet been held to account,” Detective Chief Inspector Kerrie Foreman from the Police Service’s Major Investigation Team said.

“Twenty years have now passed - that’s 20 long years of unimaginable torment for a loving family.

“Yet, despite their pain, they’ve never given up their search for answers and, likewise, our determination has remained steadfast.

“We’re releasing CCTV footage, along with still images - this is the last known footage of Lisa in the run-up to her disappearance.”

Lisa Dorrian

Detective Chief Inspector Foreman said her hope is to jog memories and to encourage anyone with information to speak up.

“Those who have information, but who are reluctant or frightened to come forward, must surely have a troubled conscience,” she said.

“Please be assured that information can be passed, with 100% anonymity, to the independent charity Crimestoppers.

“The charity is offering a reward of up to £20,000 for information given directly to them that leads to the arrest and conviction of those responsible for Lisa’s murder or, noteworthy, for information that results in the recovery of her body.

“With Crimestoppers, calls are never recorded, there’s no caller line display or 1471 facility, and computer IP addresses can never be traced.”

Still image: Shows Lisa leaving Lock & Quay, Groomsport, in County Down (now Groomsport Inn) on the night of Friday 25 February 2005. Image: PSNI

Ms Dorrian’s family also released a statement, remembering their sister and daughter on the 20th anniversary of her murder.

“28th February marks 20 years since Lisa was murdered and disappeared,” the statement read.

“20 years ago, we lost our beautiful sister and daughter but, even more importantly, Lisa lost her life at the hands of people she knew and trusted.

“Every day without Lisa is hard, but 20 years has been a lifetime of pain for us.”

The family described Lisa as a vibrant person and said she was “denied all of her hopes and dreams”.

They added that Ms Dorrian’s mother passed away without any closure around the murder of her daughter.

Imag shows: (left-right) Lisa Dorrian's father John and sisters Michelle and Joanne, during an appeal on the 20th anniversary of Lisa's disappearance, at PSNI headquarters in Belfast. Picture date: Thursday February 27, 2025. Image: Alamy

“Since Lisa was murdered we have had family celebrations, birthdays, births and deaths and have felt the loss of Lisa at every single one,” the statement said.

“We are grateful to have an active PSNI investigation with a team intent on getting justice for Lisa.

“We hope to see Lisa's murderers in court one day.

“Twenty years of secrecy could end with a phone call, a letter, a message.”

The family concluded with: “Please tell us where Lisa is”.

Still image: Shows Lisa enter Saltwater Brig, near Kircubbin, in County Down on the afternoon of Saturday 26 February 2005. Image: PSNI