Delhi Chief Minister Arvind Kejriwal's home turned into a "scene of crime" today as a large number of policemen scoured it for evidence, questioned the staff and took away boxes full of hardware from CCTV cameras, in the unprecedented fallout of an alleged assault on the city's top bureaucrat earlier this week. The police say they went to the Chief Minister's house after their request for CCTV footage was ignored. The footage, they say, will be examined for clues on what happened on Monday night at a meeting in which Chief Secretary Anshu Prakash was allegedly attacked by two lawmakers of the Aam Aadmi Party (AAP).