A scheme aimed at reducing drug culture at a young offenders' centre in Belfast is working, according to a Queen's University report.
The governor says inmates have benefited from scheme
The programme at Hydebank Wood offers support to young inmates while they are being detained and continues after their release.
It is run in partnership with the voluntary group Opportunity Youth.
The centre's governor, Stephen Davis, said the programme had benefits for both staff and inmates.
"It is easier to talk to prisoners who are less unpredictable than they formerly were," he said.
"The levels of assaults, abuse and bullying have all reduced significantly.
"This is not only because of a reduction in drugs, but also because of an improvement in control amongst my staff."