The teacher arrested on suspicion of abducting 15-year-old Sussex schoolgirl Megan Stammers has agreed to be extradited to the UK.
Jeremy Forrest, 30, from Ringmer, East Sussex, was arrested in Bordeaux, France, on Friday, more than a week after the pair went missing.
He appeared before the Court of Appeal in the port city at the start of formal extradition proceedings.
The court is expected to give his extradition the go-ahead on Thursday.
Mr Forrest and Megan, from Eastbourne, had travelled to France on 20 September but failed to use return ferry tickets three days later. A European arrest warrant was then issued.
Mr Forrest's British lawyer Phil Smith said: "Now that he has agreed to be extradited to the UK, we look forward to the full story emerging.
"He is very appreciative of the support of his family."
He added Mr Forrest was "concerned about the impact of this on all those concerned".
During the hearing, Mr Forrest was asked if he agreed to return to the UK, to which he replied "yes".
The teacher, who gave his birthplace as Aberdeen, then signed a three-page document before the two male and one female magistrates.
Mr Forrest is a maths teacher at Bishop Bell C of E School, in Eastbourne, which Megan attends.
The teenager has already returned to her hometown and been reunited with mother Danielle Wilson and stepfather Martin Stammers.
The information which led to the pair being found came as a result of media coverage in France and followed appeals from the families of both Megan and Mr Forrest.
Megan's friends and family had also used Facebook and Twitter to help the police search.