The wife of French serial killer Michel Fourniret is on trial in Paris
Monique Olivier is standing trial for her part in the murder of Joanna Parrish
Joanna, from Gloucestershire, was murdered in Auxerre in 1990
Monique Olivier is also standing trial for another murdered and a kidnap
On day one, Olivier told the court "I regret everything that happened"
She added she should have stopped events involving murderer Michel Fourniret "earlier"
Our reporters Steve Knibbs and Dickon Hooper are in court in Paris
Our live coverage from Paris has ended for today.
We'll be back in court next week to hear from Joanna's parents.
There will be updates tonight on BBC Points West on BBC One, and on BBC Radio Gloucestershire.
Dickon Hooper
BBC West
Monique Olivier is shaking her head as Nachbar talks about the "criminal pact" between her and Fourniret and going back over the murder of Isabelle Laville in 1987.
Nachbar gives some sexual examples of how Olivier helped Fourniret - they are too graphic to report - and calls her a "monster of inhumanity".
Dickon Hooper
BBC West
It feels like the French justice system is on trial now.
The simple question of "why was Marie-Angele Domece and Joanna Parrish not included in the 2008 trial?" has descended into legal wrangling over events dating back years.
This is a question Joanna's parents have been asking for decades.
The president of the court said to Nachbar: "You were well placed to join Marie-Angele Domece and Joanna Parrish's case in 2008.
In response, Nachbar said: "We were all in agreement that we could not judge Monique Olivier and Michel Fourniret on their confessions alone.
"Did we all make a mistake? Easier to say now than in 2008."
Steve Knibbs reports on what has been happening at court in Paris.
Dickon Hooper
BBC West
The president of the court is asking why Joanna Parish and Marie-Angele Domece was not included in 2008.
Nachbar said: "This decision to not put Marie-Angele Domece and Joanna Parrish into the 2008 trial was not my decision. It was a decision that everyone was in agreement.
He said they wanted to first circle of victims, as some of the relatives of the victims were very old.
"There was nothing more important than the victims' families," he continued.
He said Ms Domece and Ms Parrish's cases were not ready and that everyone was in agreement that they would get to them in a "second circle" of cases.
"We had the confessions of 2005, retracted. We only had that. They had been extradited, Michel Fourniret and Monique Olivier, on specific points - not for the murders of Marie-Angele Domece and Joanna Parrish. We would have had to reextradite them."
Steve Knibbs
BBC West
Nachbar then told the court what Monique Olivier had said to him in 2005 about Joanna Parrish. This is the confession that gave Joanna’s parents so much hope of a conviction back then but Monique Olivier later retracted it.
But in 2005 she said in a police interview that her husband used her to reassure the victims and they had tried to kidnap a girl at the station in Auxerre, but that had not worked. So they went back a few months later.
Nachbar said they did not know about Joanna Parrish then but Monique Olivier gave very clear and precise details about what she was wearing, what she was carrying and what happened to her. Much of it too distressing for us to report.
She said that Joanna fought back against Fourniret’s attack. But, as we know, Fourniret raped and killed Joanna.
Nachbar said that Monique Oliver suddenly went very quiet and lowered her head during the interview and stayed silent for half an hour.
He said: “She was like a statue. I put my hand on her shoulder and said: “Are you ok?” Another officer put two hands on her shoulders and said “Monique, stay with us.” It was not violent, he said.
Nachbar said the hardest moment during the interview was when they asked Monique Olivier what had happened to Joanna after that. She replied: "The body was thrown into a body of water."
Joanna’s body was found in the River Yonne, not far from Auxerre the following morning.
Image source, Family photoDickon Hooper
BBC West
Monique Olivier's retraction in 2006 was one reason why Joanna Parrish's case was not included in the 2008 trial of Michel Fourniret and Monique Olivier.
This delayed justice for her parents.
Now we're hearing in court what happened, according to Mr Nachbar.
Dickon Hooper
BBC West
Nachbar is being questioned by the president of the court.
He was there when Olivier admitted her part in the murders of Marie-Angele Domece and Joanna Parrish.
He said Fourniret helped them find the bodies, but Olivier did not. We have not heard this before.
Olivier accused Nachbar of using physical violence against her when it came to confessing about Ms Domece and Ms Parrish in 2005, which is why she has said in the past she retracted them.
Now in court, Nachbar is explaining his version of events.
Dickon Hooper
BBC West
In 2008, Michel Fourniret, dubbed the Ogre of Ardennes, and his wife, Monique Olivier, were jailed for their crimes between 1987 and 2001.
But Joanna Parrish's case was not included in the 2008 trial, despite Fourniret and Olivier being suspects.
Olivier had confessed in 2005 - but later retracted that confession, saying she had been coerced into giving it.
Francis Nachbar, the prosecutor of the 2008 trial, has been retired since 2021.
The court is back in session.
We expect to hear from Francis Nachbar next, the ex-prosectuer of the 2008 trial of Olivier and Fourniret.
Dickon Hooper
BBC West
The Parrish family lawyer, Didier Seban asked why the French justice system took so long to bring justice for Marie-Angele Domesse and Joanna Parrish.
He was speaking to journalists.
"I learned about the quality of Monique Olivier's confessions around Marie-Angele Domesse and Joanna Parrish," he says.
"It was her who spontaneously spoke about these two cases, who gave the details and repeated them, and i don't understand why the French justice system didn't get into this at the time: why was there such a delay for these victims?"
The Parish family lawyer Didier Seban
Didier Seban at Cour d'Assise
The court has broken for lunch.
We will be back in an hour with updates live from Cour d'Assise.
Dickon Hooper
BBC West
Olivier's defence lawyer, Richard Delegnenes asked if investigator Catherine Bauret noted any seduction in the letters between Olivier and Fourniret.
"Did Fourniret seduce her?" Mr Delegnenes asked.
Again, the defence said that she was controlled. The ex investigator says she cannot answer.
Ms Bauret said Fourniret flattered Olivier in the letters.
Mr Delegnenes argued that Olivier never agreed to a criminal pact with Fourniret
Dickon Hooper
BBC West
According to local journalists, Ms Bauret was a former senior inspector at the Judicial Police of Namur.
Ms Bauret previously said there were "two Monique Olivier's".
"She wouldn't talk about crimes, but if it wasn't about that, she'd talk about her feelings," she said.
“She was relaxed, as if we hadn’t spent 8 hours together."
But as soon as Olivier was asked about victims, the tone and attitude "changed completely”
Steve Knibbs
BBC West
This has been a very long session, with a lot of information to take in, without a break for the jury. Nearly three hours so far.
Lawyers for the families, known as the Civil Parties, each get a turn to question witnesses.
Richard Delgenes, who has represented Monique Olivier for 18 year now, is also expected to ask questions.
Dickon Hooper
BBC West
Ms Bauret said Olivier admitted she had the chance to stop Ms Domece getting in the van - but she was afraid of Fourniret.
The Belgian inspector said Fourniret had told Olivier in the late 1980s that she was now an accomplice.
Dickon Hooper
BBC West
The Belgian investigator, Catherine Bauret is very measured, dressed in black, clearly moved by what happened.
Her evidence shows a concerted effort of investigative work by the Belgians, co-operating with the French, dealing with very difficult people (Monique Olivier and Michel Fourniret) in murder cases that no one perhaps understood the scale of at the very start.
It's 2023 and the investigator is talking about events back in 2004 and 2005 as if they were yesterday. I think many people involved with Fourniret and Olivier feel the same way.
Dickon Hooper
BBC West
Seban asked the investigator, Catherine Bauret, if Olivier ever admitted to anything that never happened.
"No. Only once...but we only got her to talk after a long laborious process," said Ms Bauret.
"But she never retracted anything, except one thing: She admitted six to seven killings by her husband, and then retracted that. She would give us another victim each day, including a Polish girl and a South Korean."
Dickon Hooper
BBC West
The Belgian investigator said Michael Fourniret confessed to being worse than Marc Dutroux, a notorious Belgian paedophile.
Dutroux was convicted of child murder, kidnap and rape in 1989, but was released on parole after just three years in 1992.
He went on to kidnap six girls between 1995 and 1996.
Dickon Hooper
BBC West
Didier Seban, the Parrish family lawyer, is now questioning the Belgian investigator.
"When Monique Olivier speaks, you need to talk to her a lot," said Mr Seban.
He has told us Olivier will avoid questioning by dissembling, so it looks like he is trying to make the same point again today.