Blue Peter presenters will announce the restoration of privileges for the shows' badge holders on this afternoon's programme - as long as they submit to an under-age ID card scheme.

Naughty kids had been "defrauding the system" by selling their Blue Peter badges over the internet, it emerged in March.

The new Blue Peter badge will come with a photo-ID card. The BBC warned that it would be illegal to sell the card and it would use the law to go after websites like eBay that allowed people to sell them in their bring and buy sales.

"We could ask people to close a sale down because the badge remains the property of the BBC," said a spokesman.

"The world has changed," he said, echoing the proponents of the ID scheme for adults. But now the BBC was clamping down, it would be more difficult for people to abuse the system.

50,000 Blue Peter badges are handed out every year to children who perform feats of charity or daring do for the show's producers.®

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• UK gov scraps youth ID card (28 February 2007)
• MPs want to postpone ID (4 August 2006)
• BBC mulls database of kids (27 April 2006)
• Blue Peter ID cards no joke (30 March 2006)
• Blue Peter badge privileges suspended (29 March 2006)
• Blue Peter ID Cards for pesky kids (28 March 2006)
• Beeb attacks evil trade in Blue Peter badges (27 March 2006)