The organiser of the Glastonbury Festival is to call in the police to investigate fears that tickets for this year's sell-out event could have been forged, it was revealed today.
Michael Eavis said that he wanted Avon and Somerset Police to investigate up to 500 tickets bought from a website.
Mr Eavis believes some of the tickets were duplicates so could have been forged before being sold for up to £400 each.
There was huge demand for tickets for the three-day festival in June, which starred Oasis and Sir Paul McCartney.
Sales were limited to just more than 112,000 but millions of people are believed to have tried to buy tickets when they went on sale via the internet.
"I am asking the police to find out where these tickets came from. There is a serious problem here and I am not happy about the source of the tickets," said Mr Eavis.
People who got through to the official sales site had their name printed on the ticket as part of moves to stop fraud.
It is understood that the website Mr Eavis wants police to investigate offered to provide identification.
The sale of the tickets online was marred by technical problems, with thousands jamming phone lines and the website in attempts to get their passes.