Nearly 30 witnesses will be arrayed in the charge sheet against the accused in the case of the gruesome gang rape and murder of the 23-year-old physiotherapy student last month, besides all forensic and material evidence.

The Delhi Police have reconstructed the sequence of events leading up to the December 16 incident in the capital, on the basis of statements given by the victim and her male friend, who was also attacked and seriously injured when he tried to rescue her on a moving bus, besides the statements of the policemen who rushed the two to Safdarjung Hospital and the doctors there.

The police would also try to ensure deposition by the Singapore-based doctor who conducted post-mortem. The statements of the victim and her male friend have already been recorded under Section 164 of the Criminal Procedure Code. The girl’s statement, recorded by a Sub-Divisional Magistrate, may now be treated as her dying declaration and hence is admissible as evidence.

The police have not yet received the post-mortem report, which is to be forwarded to the authorities here through the Indian High Commission in Singapore. It may be given to a medical board to determine the cause of death, if necessary for legal purposes.

“In any case, the post-mortem report would be admissible as evidence,” a police officer said on Tuesday, adding legal experts were being consulted to find ways of overcoming any hurdle. Police sources said it was psychologically devastating even to the investigating officer to record gory details of the injuries inflicted on the victim.