Parents can once again expect a 'knock on the door' if they fail to take action over their rowdy children.

Earlier this year, police sent out letters to the homes of 17 children suspected of antisocial behaviour in Witney.

The letters were the result of a covert operation which saw seven young people arrested for public order offences across the town.

The exercise, codenamed Operation Juggle, saw non-uniformed officers secretly film crowds of young people at the Buttercross in the town centre and other areas, including Edington Square in the west of the town.

Young people were caught on camera drinking alcohol, swearing, causing harassment and distress to other people and damaging property.

Police said this week that after receiving letters, 10 parents called in to Witney Police Station to discuss their children's behaviour.

Antisocial behaviour manager Simon Towers said the operation had proved a great success and would be extended - with letters sent out for everything from criminal damage to possession of alcohol by minors.

He said: "It's safe to say all those parents who appeared supported what we were doing.

"The thought of a letter going home to mum or dad is terrifying.

"Figures show less than five per cent re-offend, but we have now got these young people's names - and if they come up again, it will press a warning bell."

Following Operation Juggle in February, Chief Inspector Dennis Evernden said: "We want parents to think beyond their front doors, and remember they have responsibility for their children's behaviour when they leave the house.

"This will have been a very good result if this kind of behaviour reduces. Tackling antisocial behaviour is about parenting, policing and citizenship, together. And some parents can expect a knock on the door."

Anyone with information about vandalism should call the Police Enquiry Centre on 08458 505505 or Crimestoppers on 0800 555111.