A former police officer and ex-scout leader has been jailed for 22 years for 40 historical child sex offences, spanning four decades.
"Sexual predator" Allan Richards, who was a serving officer with West Midlands until he retired five years ago, targeted children as young as eight in a spate of offending that started back in the 1970s and lasted until 2013.
He was convicted following two separate trials at Birmingham Crown Court of voyeurism and sexual offences against 17 victims.
Sentencing Richards, Judge Francis Laird QC told him: "It's abundantly clear to me you have been a sexual predator all your adult life."
He added: "You have shown no remorse for what you did or for the damage that you have done to so many individuals."
Following the trial it emerged he had been removed from a public-facing role in the force following a complaint made against him in 2004, but kept his job.
He was kicked out of the Scouts the same year, after the Scouts Association learned of the allegation.
However, the 54-year-old, of Tile Cross, Birmingham, who faced a further accusation in 2000, was not charged and was able to continue working as a police officer until his retirement.
Of his six victims, six were assaulted after 2000.
It was only when another allegation was made in 2014 that a fresh investigation was launched.