A scout master who carried out sex attacks on young boys for over a decade has been jailed for 18 years at Lincoln Crown Court.
Paedophile David Sewell committed dozens of offences against boys after targeting victims he met through his role with the scouting movement.
Judge Michael Heath told him: “You systematically and grievously abused boys in a sordid and distressing manner. This was an appalling litany of sexual abuse of young boys.
“I consider you to be dangerous. There is significant risk to young boys of serious harm.”
Sewell was placed on the sex offenders’ register for life and was ordered to remain on parole licence at risk of being returned to prison until 2038 if he is released from jail early.
Sewell, 37, of Valley Road, Grantham, admitted five rapes and 44 other sex offences involving nine boys aged between nine and 15. The offences took place between May 2004 and July this year.
Police fear even more victims have yet to come forward as Sewell also had regular contact with children for over 20 years through his day job. He was previously employed running council play schemes and after school clubs. Later he was working in children’s homes before taking up a job at a local leisure centre.
Det Supt Rick Hatton, of Lincolnshire Police, said last night: “He is a very dangerous predatory paedophile. He always had one eye on who to groom for his next victim.
“I have no doubt there may well be other victims out there and we would urge any other boys who have been abused to come forward.”
Grace Hale, prosecuting, said that Sewell invited young boys to his home and then showed them pornographic films before carrying out his sordid sex attacks.
She told the court that from the 1990s Sewell was employed in a number of jobs which brought him into contact with young children, adding: “He has been involved with the Scouts for over 20 years in various capacities including being a scout leader since he was 17.
“His previous occupations included working for South Kesteven District Council in the early 1990s in planning and organising play scheme activities for after school clubs as well as organising holiday schemes for children aged between five and 14. Later he worked in a children’s home with children from the ages of 11 to 18. From there he worked at The Meres Leisure Centre where he also had contact with children.
“He candidly admitted he was sexually interested in children aged between 11 and 13. He said he had not been involved in a sexual relationship with an adult save for a single one night stand with a man.”
Sewell was arrested after one of his victims came forward and contacted police. Enquiries then resulted in further victims coming forward.
Mark Watson, defending, said: “He offers the most sincere apologies for his behaviour.”
He said Sewell’s own upbringing provided him with “a model of abnormal sexual relationships between men and boys”.
Mr Watson said that since his arrested Sewell has twice tried to take his own life while being remanded in custody awaiting his court hearing.