From Street Patrols to Spicy Samosas - the theory behind Muslim converts and why they cause concern

Though converts to Islam represent a small percentage of the Muslim community in Western countries, when it comes to Islamist extremism and terrorism, research has suggested that converts are considerably overrepresented.

In the United Kingdom, whilst those that have converted to Islam represented less than 4% of the country's Muslim population (in 2010, estimated at just under 3 million), figures show that they made up 12% of homegrown jihadists. In simple terms, converts were 3 times more likely to become extremists than Muslims born to the faith.