Doctor Antony McRoy, a Christian expert on Islamic extremism, has said Christians have a duty to directly challenge radical Islamist preachers like Anjem Choudhary, who was convicted of terror offences after encouraging people to join Islamic State. There has been a call to review UK anti-terror laws. Mr Choudhary was able to preach radical Islam openly on social media and in public for years before he was finally arrested in 2014. Mr McRoy, who has met Anjem Choudhary and some of the terrorists he has radicalised several times, has said Christians have ‘hidden’ in their churches rather than confronting erroneous teaching. He said, ‘We've got to ask ourselves - how many confronted him personally? How many Christians went up to him to take him on? How many Christians do this to his supporters?’