An 87-year-old man from King's Lynn has been jailed for eight years after admitting child sex offences dating back to the 1960s.
Retired music teacher Paul Johnson pleaded guilty to 12 counts of indecent assault.
The abuse took place between 1969 and 1980 while he was working in Norfolk and London, and involved four victims.
He's also been placed on the Sex Offenders Register for life and handed a Sexual Harm Prevention Order.
"This was an awful case where Johnson took complete advantage of his position of trust to encourage his victims to allow him to carry out sex offences," Detective Constable Kim Taylor said.
"By pleading guilty, Johnson has prevented the victims having to relive their ordeal through a trial. However, I would like to commend them all for the bravery they have shown and we hope this conviction and sentence provides some level of closure.
"Although these offences were committed many years ago, this sentence highlights that no matter how long ago an offence or offences took place, we will carry out a full and thorough investigation to ensure those responsible are brought to justice."