Rawalpindi's police chief stopped doctors at the hospital where Benazir Bhutto died from conducting an autopsy, according to a lawyer on the hospital's board. It was a violation of Pakistani criminal law and prevented a medical conclusion about what killed the former prime minister, said Athar Minallah, who serves on the board that manages Rawalpindi General Hospital. However, the police chief involved, Aziz Saud, told CNN that he suggested an autopsy be done, but that Bhutto's husband objected.The revelation came on Monday after new videotape of Bhutto's assassination emerged, showing her slumping just after gunshots rang out. The tape provided the clearest view yet of the attack and appeared to show that Bhutto was shot. That would contradict the Pakistan government's account.