ISOs are court orders only available for 10-17 year olds which can be attached to 'stand alone' ASBOs and impose positive conditions on the young person to address the underlying causes of the behaviour that led to the ASBO. An ISO may last up to six months and can require a young person to attend up to two sessions a week under the supervision of the youth offending team (YOT). Breach of an ISO is a criminal offence which may be punished by way of a financial penalty.