Nick Griffin is a conservative criminal activist and leader of one of the fascist parties in the UK, the BNP. Conservapedia praises his anti-Islamic sentiments. He was a member of the National Front. He was invited to join the BNP, by a founder John Tyndall. Griffin's leadership of the BNP has been challenged since the party started to do badly at elections. 
He has been accused of hate crimes, repeatedly.
He was charged under the Public Order Act with publishing a magazine likely to stir up racial hatred. In 1998 he was tried and convicted and received a nine-month suspended prison sentence.