Last year the Alliance for Workers’ Liberty and their allies on the executive of the National Union of Students called for Tariq Ramadan to be banned from speaking at the European Social Forum in London. (See here.)
One of the arguments used against Professor Ramadan was that he didn’t call for the immediate repudiation of the hudud punishments in the sharia but merely advocated a moratorium pending a full discussion among Muslim scholars.
He explains his position here: Guardian, 30 March 2005
The full text of Tariq Ramadan’s appeal can be found at tariqramadan.com
See also “Tariq Ramadan calls for Hudud freeze”, Islam Online, 30 March 2005