In mid-February 1989, following a violent riot against the book in Pakistan, the Ayatollah Ruhollah Khomeini, then Supreme Leader of Iran and a Shi'a Muslim scholar, issued a fatwa calling for the death of Rushdie and his publishers, and called for Muslims to point him out to those who can kill him if they cannot themselves. Although the British Conservative government under Margaret Thatcher gave Rushdie round-the-clock police protection, many politicians on both sides were hostile to the author. British Labour MP Keith Vaz led a march through Leicester shortly after he was elected in 1989 calling for the book to be banned, while the Conservative politician Norman Tebbit, the party's former chairman, called Rushdie an "outstanding villain" whose "public life has been a record of despicable acts of betrayal of his upbringing, religion, adopted home and nationality".