Shortly after the incident and the media furore that followed over Usmani's death, Maharashtra's Director General of Police Ajit Parasnis ordered a state criminal investigation department inquiry into it. As many as six Mumbai crime branch officials have been questioned so far
The provisional post-mortem report of Faiz Usmani, who died in a hospital on Sunday after being questioned in connection with last week's serial blasts in Mumbai, has stated that he had a heart attack and there were blood clots in his brain. "The provisional post-mortem of Usmani suggests that 90 grams of blood clot was found in his brain. He even had a heart attack. His heart has been kept separately for further medical examination," Dy Commissioner Crime) Nisar Tamboli said