Specialist teams are searching land on the Wirral as part of an inquiry into the disappearance of Steven Preston in 1992.
Pensby school girl approached in 'suspicious' circumstances
The 12 year old girl was walking along Nelson Drive when a blue car pulled along side her.
Merseyside Police say she was on her own when the driver, a white man in his late 50s, shouted something to her, which included asking where she was going.
The girl managed to run away and get to the safety of school, but was left shaken and upset by what happened.
The suspect is described as being of large or fat build with grey hair and a bald head. He was wearing an old-looking black jumper and had an unwashed face and a number of missing teeth.
The car he was driving is described as being blue or navy blue and is believed to be an old-model Honda hatchback. It had a dent in the back passenger side door, a wheel trim missing from the rear passenger side wheel and a dog cage in the boot space.
Detective Sergeant Nick Suffield from Wirral CID, said: "This was clearly an unusual and unsettling experience for this girl and she has done absolutely the right thing in taking herself out of the situation and calling the police and telling her school.
"We carried out an immediate search of the area that morning and enquiries are continuing into the suspect's car as it is very distinctive.
"Incidents like this are rare in Pensby but, as a precaution to reassure children and parents, uniformed officers have been giving the area around the school extra attention at the start and end of the day.
"The victim has been incredibly brave and sensible and her help in putting together this likeness of the suspect is really useful. I would encourage local people to take a look at the man in this e-fit and contact me if they have any information at all which could help our enquiries."
The incident happened at 8.45am on Thursday, January 31, 2013. Call Birkenhead CID on 0151 777 2265 or Crimestoppers on 0800 555 111.
A four-year-old girl died a day after being hit by a car with her Grandmother in St Helens.
Hundreds of thousands of commuters could be affected by strikes as action over driver-only trains spreads to northern rail networks.
Greater Manchester Fire Service are using International Womens Day to try to bust the myth that firefighting is a macho male occupation
Recently Played Tracks
Now playing: Non-stop hit music
Deposit £10 to get a £40 Welcome Bonus - That's £50 to play bingo, slots and more!*
Over 50 tracks to make you feel-good. New album out now...
Find your local four day weather report here.
What's happening on the roads where you are?
Make Heart the soundtrack to your day and you could be a winner with great prizes up for grabs throughout the day.
Find out more about some of the companies advertising on Heart North West.