A former teacher has been jailed after admitting making indecent images of scores of children using hidden cameras at a boarding school and another property.
Jonathan Thomson-Glover, 53, who taught at Clifton College in Bristol, pleaded guilty to 36 counts of making, taking and possessing indecent images of children.
Thomson-Glover, of Wadebridge, Cornwall, was jailed for three years and nine months by Judge David Ticehurst at Taunton Crown Court.
The charges relate to more than 120 victims filmed by hidden cameras at Clifton College and an address in Cornwall over a 16-year period.
Thomson-Glover admitted 27 charges of taking an indecent image of a child; seven charges of making an indecent image of a child and two charges of possessing indecent images of children.
He was charged following a joint investigation between Avon and Somerset Police and Devon and Cornwall Police.
The judge told him: "You are a man looking at a life that is now in ruins.
"That life was a good life and you have made a positive contribution.
"It is a life now reduced to rubble as a result of your fatal flaw.
"You are the author of your own misfortune and there can be little sympathy for you.
"It is impossible to calculate the harm and damage you may have caused to those who trusted you or were in your care."
Thomson-Glover remained emotionless as he was led from the dock.
He was ordered to sign the Sex Offenders' Register indefinitely and banned from working with children on his release.