Last Updated: Friday, 19 May 2006, 17:24 GMT 18:24 UK
Police reopen 1973 mystery case
Christine disappeared on her way to school
Police are revisiting the case of a nine-year-old girl who vanished without trace in Scunthorpe 33 years ago.
Detectives from the Major Investigation Team (MIT) are conducting a review into the disappearance of Christine Markham in 1973.
She left home to attend school but failed to arrive. Police searched some 5,000 homes but she was never found.
Det Supt Colin Andrews said "I don't want to raise hopes that we are close to a breakthrough because we aren't."
The Christine Markham case has never been closed and Humberside Police have continued to follow up any new information since her disappearance, although this has been limited.
Christine is still classed as a missing person but sadly is presumed dead
Det Supt Colin Andrews
The MIT, under the leadership of Det Supt Andrews, are conducting the cold case review as a matter of routine.
The incident is being transferred from a paper system into the H.O.L.M.E.S. computer (Home Office Major Enquiry System). The family have been made aware of the review.
Det Supt Andrews said: "Christine is still classed as a missing person but sadly is presumed dead.
"My team would like to hear from anyone who still has information about what happened to Christine, but for whatever reason have not come forward.
"It may be that someone who detectives did speak to has kept something back, or would like to add something to what they've already said.
"Either way, let us be the judge of how important the information is that they hold."
Police say Christine walked part-way to school with two of her siblings, who then caught a bus to another school that they attended. They say that through the bus window, they saw Christine turn around and walk back in the direction in which they came.
She had been known to take the odd day off school and wander the area.
That night, police and around 60 volunteers conducted an extensive search of the area.
A number of sighting were reported to the police of Christine's whereabouts; including a relative who was on a bus and saw her on Ashby Road between the Brumby corner and Priory pub around 1030 on that Monday.
About 2,000 witness statements were recorded during the inquiry.
Former officers, now retired, who were involved in the search for Christine, have been consulted recently over their knowledge about the case.
DNA has been taken from Christine's family to help officers identify her if she should ever be found.