David Hennessy , Colwyn Baker and Nigel Putman allegedly abused boys . Three men were residential child care officers at Swaylands School in Kent . The school catered for boys with emotional and behavioural difficulties . Trio face a total of 49 charges against 24 victims aged between 10 to 15 . Court heard abuse at school was so common it was 'almost the norm ' Boys were allegedly encouraged to commit sex acts on other children .
Colwyn Baker , David Hennessy and Nigel Putman allegedly abused boys . Three men were residential child care officers at Swaylands School in Kent . The school catered for boys with emotional and behavioural difficulties . Trio face a total of 49 charges against 24 victims aged between 10 to 15 . Court heard abuse at school was so common it was 'almost the norm ' Boys were allegedly encouraged to commit sex acts on other children .