Prosecutors are to announce whether the prime suspect in the murder of 13-year-old Milly Dowler is to be charged.
Levi Bellfield, 41, will learn if he is to be formally charged by the Crown Prosecution Service (CPS).
The former wheelclamper and doorman was first interviewed over Milly's death several years ago after he was held by the Metropolitan Police.
The murder of Amanda Dowler, known to her family as Milly, is one of Britain's best-known unsolved crimes.
She vanished while walking home from school in Walton-on-Thames, Surrey, on March 21 2002.
Six months later her skeletal remains were found 30 miles away by mushroom pickers in Yateley Heath, Hampshire.
Officials at the CPS complex casework unit began considering a huge dossier of police evidence last August.
The five files of material, drawn together by Surrey Police's Operation Ruby team, include new evidence against Bellfield obtained in December 2008.
Officers believe they have compelling circumstantial evidence which links him to the crime.
Police continue to search for a red Daewoo Nexia car they believe was used to transport Milly's body. They searched a lake near Heathrow Airport and questioned scrap dealer Nirmal Gharu last year.
