A hundred Islamists are now openly enforcing Sharia law on the streets of Berlin, according to local police who are investigating a recent string of violent assaults in the German capital. The self-appointed morality police involve Salafists from Chechnya, a predominantly Sunni Muslim region in Russia. The vigilantes are using threats of violence to discourage Chechen migrants from integrating into German society; they are also promoting the establishment of a parallel Islamic legal system in Germany. German authorities appear unable to stop them.