Abdul Ezedi, 35, who was granted asylum after converting to Christianity, was buried in an Islamic ceremony at an east London cemetery this month with a handful of people present.
The Home Secretary s stern Easter message to church leaders comes after it emerged a Baptist minister backed Clapham chemical attacker Abdul Ezedi s bid to gain asylum.
A video showing Ezedi being laid to rest aired on the BBC last night. His funeral was allegedly held at a mosque in west London before he was given a Muslim burial in east London on March 11.
Abdul Ezedi was considered so dangerous by the Baptist Church it drew up a safeguarding contract for the safety of parishioners over his sex assault conviction.