A teenage drag queen from Banbury who made a hoax bomb threat to WH Smith headquarters in Swindon was today jailed for 14 months.

Joel Broad, 19, telephoned the switchboard of the retail giant's headquarters on September 1 last year and said there was a bomb in the customer services department.

More than 200 staff were evacuated from the building and roads around the site were closed.

The hoax call is said to have cost WH Smith £50,000 in lost revenue and the alert was only lifted after three hours following a thorough search involving police sniffer dogs.

Broad had been employed in the customer services division, but his contract had come to an end. He was offered a job in the firm's Heathrow office, but he turned it down.

As well as being an office worker, Broad regularly performs as drag queen Tammy Tampax in pubs in Swindon, Oxfordshire and Colchester.