New Delhi: Delhi Police, which has registered a case of murder in the mysterious death of Sunanda Pushkar, will send her viscera samples to a laboratory either in Britain or the US to identify the poison including whether it could be radioactive isotopes that cannot be detected in Indian labs.

“The viscera samples may now be sent to an FBI lab in the US or lab in UK,” said a senior police official.

Delhi police commissioner B.S. Bassi on Tuesday said that the final medical report from AIIMS has revealed that Sunanda died of poisoning but it was not clear whether it was injected or administered orally.

The report also did not mention the kind or nature of the poison while mentioning a list of possible chemicals which could not be detected in Indian labs.

A Special Team which has been formed to probe the case will investigate the case from scratch. It will also examine the hotel doctor who declared Sunanda dead.