Probe launched after convicted bigamist who married Scot under fake name 'posed as doctor'

Bigamist Alisa Knight - on her wedding day at Gretna with husband Peter Knight.
-Credit: (Image: Supplied)


Northern Irish police are investigating claims a convicted bigamist falsely posed as a doctor and GP. They are also conducting enquiries after reports Alisa Knight - who has used over 20 aliases - included false information on a marriage certificate in 2023.

The woman married six times, who also used different dates of birth and married at Gretna Green three times, told members of the public at various times she was a GP and critical care doctor, an advanced nurse practitioner, Band 8C nurse, a district nurse and a specialist in psychiatry.

She also claimed to have switched off the life support machine of her eldest daughter when she was five, despite the fact the teenager is alive and well. The General Medical Council and the South Eastern Trust confirmed Alisa has never been a doctor or licensed medic, the Irish Mirror reports.

They added: “To confirm, we cannot locate a doctor by the name of Alisa Knight or Alisa Hennessey on the medical register. It is illegal to falsely use protected titles such as doctor of medicine, general practitioner, and physician.

"If an individual is giving the impression they hold registration or a licence with us when they don’t, or there is evidence they are carrying out a privileged activity while unlicensed, then this is a criminal offence in the UK and should be reported to the police.”

Alisa Knight and Peter Knight.
Alisa Knight and Peter Knight. -Credit:Supplied

According to the number of men she seduced into a series of marriages, she spun a web of lies and a trail of chaos. We previously told how Scots bus driver Peter Knight, 63, married Lisa Jane Davies under the alias Alisa, at a ceremony in Gretna Green amid her claiming she was a successful doctor.

He accepted her wedding proposal on Valentine’s Day 2023 and the pair married last July. But the marriage was exposed as a sham when Peter, from St Andrews in Fife, learned his new bride wasn’t a doctor - and had a previous conviction for bigamy.

Mum-of-five Lisa - known to Peter as Alisa - had also gone off with another man for a non-binding marriage ceremony in Bali 18 days after she and Peter first met in September 2022. Amazingly, Peter received a text on their wedding day from the family of her fifth husband warning him about Lisa’s shady history.

The messages had been sent by relatives of 'husband' No5, a man we call Simon to protect his identity. But he refused to believe it and went ahead with the ceremony.

His daughter said: “Alisa told us she was a senior nurse and that her eldest daughter had died in a collision between a car and a lorry, and that she had turned off her life support machine after six weeks. We found out none of it was true and then we discovered she had been convicted of bigamy.

"We wanted to warn Peter, it was all we could do and then leave him to decide what to do. We later found out that he married her."

When he later learned the truth that she wasn’t a doctor and had a conviction for bigamy he said he “felt sick” and ended their relationship.

Peter said: “Looking back I feel like an absolute fool. I felt so happy to have her attention, to have someone to share my life, that I accepted everything she said. I trusted her, I wanted to trust her, I believed in her even when I was warned she was fooling me, and then I found out she was a fraud and a fake.”

Lisa had been convicted of bigamy on November 25, 2016, at Cardiff Crown Court in her native Wales. Then known as Lisa Everard, already divorced once and in a legal marriage with two small children, she entered into a bigamous marriage on July 6, 2016 with Mike Hughes, 47, an unwitting lorry driver who became her third husband. While still married to Mike, Alisa invited her soon-to-be fourth husband, Neil Annis, 53, a senior nursing assistant from Worcestershire, to stay in Mike’s house while he was away.

In July 2019, she married Neill after her marriage to Mike was dissolved. She later divorced Neill. Lisa later moved to Bangor in Northern Ireland in 2021 where she set up home with another man we have called “Simon” to protect his identity.

She took part in a non-legally binding marriage to Simon in Bali one month after meeting Scotsman Peter in September 2022. Lisa then went on to marry Peter, who was working as a bus driver in Northern Ireland at the time.

On her wedding certificate to Peter she declares her profession as a “GP” - but she has no medical qualifications.

Peter Knight had a warning for other men.
Peter Knight has warned other men. -Credit:Supplied

Telling how he was drawn into her web of deceit, Peter said: “Alisa came across me on a dating website and I was flattered. I was a bus driver about to retire, she was 20 years younger than me and a senior doctor working in critical care at the Ulster Hospital, Dundonald. I thought she was incredible. She told me she was a doctor from the first time we spoke.

"She was confident and kind at first. Around the time she moved into my house, my health started to deteriorate and she reassured me repeatedly.

“She advised me what to say to my own GP, what tests to ask for and she looked after my medication, dosing them into a plastic container for me to take every morning. Before we met I would have walked between 10 and 20 miles a day with my dog Wolfie.

"But my health deteriorated so badly that I could barely walk up the stairs. So I was glad of her help and support and I trusted she knew what she was doing.”

But Peter did not know that he was dating a convicted bigamist and fantasist who had no qualifications in medicine or nursing. He said: “We met in September 2022.

"Alisa proposed to me on February 14, 2023 and we got married in Gretna Green on July 5, that year. I only found out recently that she was the bride in a beach wedding ceremony in Bali, 18 days after she met me.”

Peter was also snared by a sob-story Lisa told about the death of her daughter. He said: “I thought she was very brave after she told me about the death of her daughter 12 years earlier a head-on collision with a lorry when the little girl was just five years old.

“Having lost my own son, I was devastated for her. She said she turned off her daughter’s life support machine after six weeks.

“I wanted to support her and was glad when she got busy arranging our wedding, all the paperwork, all the bills and the wedding outfits. I thought I was in heaven - until the morning of the wedding when I got a text message from a stranger that made my blood run cold.”

The PSNI and Police Scotland have been co-operating with enquiries into possible offences. A PSNI spokesperson said: "On 21st March 2024, police received a report that a woman had entered incorrect information on a marriage certificate.

"The marriage ceremony had taken place in Scotland, and as such the caller was advised that the matter should be reported to Police Scotland. Following media reports, we are making enquiries into alleged offences."

The Record has contacted Police Scotland for comment.

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