High Court: Sally Bercow's Lord McAlpine tweet was libel
24 May 2013 Last updated at 11:52 BST
A tweet by Sally Bercow about Lord McAlpine has been ruled libellous by the High Court.
Mrs Bercow, the wife of Commons Speaker John Bercow, published a tweet two days after a BBC Newsnight programme had wrongly implicated a "leading Conservative politician" in sex abuse.
Amid widespread speculation about his identity, she wrote: "Why is Lord McAlpine trending. *innocent face*."
Mrs Bercow said she was "surprised and disappointed" by the ruling.
A subsequent High Court hearing will determine the damages she must pay.
Clive Coleman reports.