Detectives investigating suspected serial killer Peter Tobin are examining possible links to a 21-year-old who went missing while on holiday in Norfolk more than thirty years ago.

Detectives investigating suspected serial killer Peter Tobin are examining possible links to a 21-year-old who went missing while on holiday in Norfolk more than thirty years ago.

Pamela Exall was on a camping holiday after completing law school when she went missing in 1974. She was staying with her brother and a friend at the Dinglea campsite near Snettisham. After going for a meal she decided to go for a late night walk and was never seen again.

Despite a full-scale police search along the north Norfolk coast, police never found a body or any sign of her whereabouts. But officers have never closed the case believing that somebody may still hold vital clues.

Yesterday Norfolk police confirmed they were among the forces re-examining cases in the wake of Tobin's arrest. The 61-year-old's home in Margate has been dubbed the “house of death” after the remains of 15-year-old Vicky Hamilton and 18-year-old Dinah McNicol were discovered. He has been charged in Scotland with the murder of Miss Hamilton.

Police are now investigating the possibility that he was a serial killer whose crimes date back to the 1960s and 1970s. He is known to have travelled all over the UK and Norfolk is just one of the forces helping with the inquiry.

A spokesman said: “We can confirm that assistant chief constable Steve Watts, from Hampshire Constabulary, has been asked on behalf of the ACPO Homicide Working Group to conduct a scoping exercise in relation to any matters of concern in relation to the movements of Peter Tobin.

“This is normal practice in circumstances such at this, when an individual has been convicted of serious crimes spaced so far apart.

Police forces in England and Wales, including Norfolk, are assisting this piece of work.”

The EDP understands that the force has also studied a number of other unsolved cases. However, it is thought a number have already been ruled out.

When Miss Exall, from Fleet, Hampshire, went missing police considered four possible reasons for her disappearances. Along with the possibility she had been abducted and killed, they investigated whether she had been swept away at low tide, fell into a dyke behind the sea bank or she had chosen to disappear.

Despite a high profile search, include photographs being distributed across the region, no further evidence was ever found.