Rowling wins court battle with fan

Author JK Rowling has won her long-running battle with a fan who planned to publish an unauthorised guide to her wizard franchise.

Rowling began legal proceedings against writer Steve Vander Ark and publisher RDR Books last year after learning of their plans to release 'The Harry Potter Lexicon'.

On Monday New York district court Judge Robert Patterson ruled in Rowling's favour and banned the encyclopaedia-style project's release.

Patterson told the court that RDR "failed to establish an affirmative defence of fair use".