A former Norfolk headmaster has today been convicted of a string of offences against pupils in his care.Derek Slade was headteacher at St George's School, in Wicklewood, near Wymondham, and in Great Finborough, near Stowmarket, from the late 1970s until 1983.

A former Norfolk headmaster has today been convicted of a string of sex offences on pupils in his care.

Derek Slade was headteacher at St George's School, in Wicklewood, near Wymondham, and in Great Finborough, near Stowmarket, from the late 1970s until 1983.

The 61-year-old, of Burton-on-Trent, was found guilty of six offences of assault causing actual bodily harm, four offences of indecent assault and three offences of serious sexual assault.

He was not found guilty of another serious sexual offence and also not guilty of one indecent assault.

A jury of ten women and two men convicted Slade after a trial at Ipswich Crown Court, which lasted almost six weeks. They took three hours and 32 minutes to return their verdict.

Slade previously admitted 15 offences of indecent assault and four offences of assault causing actual bodily harm.

He will be sentenced at Ipswich Crown Court on Monday.