A HOMELESS knife-carrying bus passenger went berserk in Old Hill and battered a policeman after being challenged for smoking cannabis on the top deck.

Jordan Ainna, aged 23, punched the police officer and put him in a headlock after he refused to leave the bus when the driver caught him smoking.

The driver had stopped the vehicle in Halesowen Road and Jordan Ainna who was with another man was ordered to leave the bus.

Mr Kevin Grego prosecuting said at Wolverhampton Crown Court that a second officer was able to assist his colleague and they managed to arrest Ainna who, when searched, was found to be in possession of cannabis and a kitchen knife.

A consultant psychiatrist diagnosed Ainna was suffering from a serious mental illness and he needed treatment under a restricted order to protect members of the public for further harm.

Judge Michael Dudley told Ainna who had a number of previous convictions for offences including robbery and using a knife he was satisfied after reading reports he was suffering from a mental disorder.

"The disorder if of a nature and a degree that warrants your ongoing detention in a mental hospital," he told Ainna. "To protect the public I must make a restricted order."

Ainna of no fixed address admitted assaulting the police officer causing him actual bodily harm, possessing a bladed article and

possessing the controlled drug.

Miss Sophie Murray defending told the court that Ainna had a prolonged heavy cannabis habit and there was a long history of mental health care.