There's growing concern for a legal high user in custody. Police need to get him to hospital, but he's so violent and unpredictable that it takes riot-trained officers to get him there.The Bridgwater team patrol the town centre on a busy Saturday night, targeting drunk and disorderly behaviour and cracking down on casual drug users as the police dog sniffs out trouble. An officer receives a tip-off about a suspected cannabis farm in a terraced house.In Bath a shoplifter is caught red-handed on CCTV, but his rowdy companion causes officers grief.