VIOLENCE against medical staff treating patients will not be tolerated, police warned after a teenager who bit a doctor was sentenced.

Darlington Magistrates' Court heard how police had to force the 17-year-old youth to release the doctor's finger when he clamped his teeth around it. The doctor was trying to check his airway.

The teenager, who cannot be named for legal reasons, also spat at another member of staff, the court heard.

Rachel Masters, prosecuting, said the youth, who had been drinking vodka, was brought into accident and emergency in an agitated state and police officers were restraining him. He had been abusive and had repeatedly threatened to assault staff.

While being treated, the youth spat at a staff member, said Ms Masters.

The youth then became still, prompting the doctor to check his airway.

When the doctor put his hand in the youth's mouth, he bit down hard for about ten seconds.

"The doctor was only released with the assistance of police officers," Ms Masters told the court.

Although wearing surgical gloves, he was left with teeth marks on his finger and pain for several weeks.

The incident happened at Darlington Memorial Hospital on February 9 after 10pm.

Graham Ablett, mitigating, said the youth was remorseful and no longer drank alcohol.

He said the defendant had been offered a job.

"I think it is fair to say that this young man is thoroughly ashamed of his actions," said Mr Ablett.

The youth pleaded guilty to assault and admitted breaching a conditional discharge.

He was sentenced to a 12- month community order and ordered to pay £43 costs. The conditional discharge, which began in October, was left in place.

After the case, PC John Forster, of Durham Police, said the force was taking a zero tolerance approach to assaults on medical staff.

"This sends the message that this kind of atrocious behaviour in accident and emergency wards will not be tolerated."

"There is a line which should not be crossed and we are determined those who step over it should be brought to justice."