BBC correspondent Tim Finan describes the latest events in the hunt for the killer

The 13-year-old from Cornwall was raped and killed at a youth hostel in Pleine Fougeres during a school trip to Brittany with Launceston Community College in July 1996.

Gendarmes are still hunting Caroline's killer two years after she was attacked.

The hostel where Caroline was killed

Caroline's father John is to visit France next week on the second anniversary of his daughter's death.

His direct appeals to the French media have maintained the case in the public eye and a new judge was appointed to the investigation this year.

The French police had pinned their hopes on two major suspects.

Judge Renaud van Ruymbeke, who is now leading the hunt for Caroline's killer, has ordered all convicted sex offenders in France to be DNA tested.

The analysis ruled both men out. However, one of them has now been charged with raping a 12-year-old French girl on a campsite three years ago.

Police were keen on talking to the second man after an anonymous telephone call from someone in Pleine Fougeres.

John Dickinson will return to France next week

The caller said she had heard a neighbouring family arguing loudly with one shouting out: "It wasn't me ... I didn't kill her."

The family were traced to a house near Paris. But the man's DNA sample did not match that found on Caroline's body.

Jean Pierre Michel, who is leading the police inquiry, says at one stage they thought they had found their man, but the genetic tests cleared both of them.

They are now following up a large number of other leads.