FAMOUS cold cases solved by modern enhanced DNA techniques include the murder of Nora Trott by builder Wayne Doherty, who at one point lived in Huntingdon. Mrs Trott, a dress shop owner, was raped and murdered in 1978. Twenty-five years later, DNA profil

FAMOUS cold cases solved by modern enhanced DNA techniques include the murder of Nora Trott by builder Wayne Doherty, who at one point lived in Huntingdon.

Mrs Trott, a dress shop owner, was raped and murdered in 1978.

Twenty-five years later, DNA profiles found on her body and clothes were matched to Doherty's DNA.

In another case, a child-killer was caught after 30 years when Brian Lunn Field from Solihull was arrested on a drink-driving offence in 1996. When his routine DNA was loaded onto the national database, it matched a crime scene stain taken in 1968. The body of a 14-year-old boy had been found raped and strangled in a wood in Surrey.

The stain had been kept in a freezer for three decades. Lunn Field denied the charges at first but pleaded guilty at the Old Bailey in 2001.