A former journalist who claims he was framed for the unsolved murder of a French film maker in Ireland has admitted assaulting his partner.
Ian Bailey, an English reporter who moved to west Cork more than 23 years ago, is suing the Irish state after being arrested twice over the killing of Sophie Toscan du Plantier.
The 39-year-old producer was found by two neighbours beaten to death on a hillside outside her holiday home in a remote part of west Cork two days before Christmas 1996.
Mr Bailey denies any involvement in the death and was never charged.
The High Court in Dublin - where the 57-year-old is suing the Irish state for wrongful arrest - heard details of a litany of injuries suffered by his partner Jules Thomas, an artist originally from Wales but who has lived in west Cork for at least two decades.
"It's common knowledge to my eternal shame that in the past when I used to drink spirits, that to my eternal shame, that I was involved in incidents of domestic violence with Ms Thomas," Mr Bailey said.
"I don't know what I can say about that other than to say it's to my eternal shame."
Mr Bailey revealed it was known in the locality of Liscaha, Schull in west Cork, where he had been living with Ms Thomas, that he had beaten her.
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"People would have been aware," he told the court.
"I don't know if it was plain for people to see it. It was common knowledge or there was knowledge of it."
Mr Bailey was shown four photos of injuries Ms Thomas sustained but refused to detail them to the jury.
"I'm not going to describe it. What I see in the photographs is shameful and disgraceful of me and I'm not going to describe that," he said.
Pressed on the injuries from May 1996 by senior counsel for the State, Luan O Braonain, Mr Bailey agreed with a series of descriptions.
Ms Thomas had a closed, blackened right eye. Another picture showed a bandage over her eye, in another bruises could be seen on her hand and she had a 4cm clump of hair pulled from her head.
Almost 20 years on from the killing of Ms Toscan du Plantier, Mr Bailey is suing the Garda Commissioner, the Minister for Justice and the Attorney General for wrongful arrest and the handling of the murder investigation.
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The jury of eight men and four women has been told the State denies all claims.
Mr Bailey was arrested twice on suspicion of the murder of Ms Toscan du Plantier, first on February 10 1997 and again in January 20 1998, his birthday.
Mr Bailey said he had been given legal advice prior to the trial not to discuss his past history of violence and said on reflection he would have come to court with a "warts and all approach".