As all the recovered body parts are decomposed, it is very difficult to get any significant result from the autopsy, said an official, adding that a portion of jaw or a fragment of skull recovered may help investigators in determining the time of death by the carbon dating process. Meanwhile, Delhi L-G V.K. Saxena has approved a proposal of Delhi Police for appointment of Special Public Prosecutors, Madhukar Pandey and Amit Prasad, Advocates, to represent the state in the Shraddha Walkar murder case.