Delhi Police Crime Branch wrote to the Central Bureau of Investigation's Central Forensic Science Laboratory demanding psychological postmortem to be conducted in connection with the Burari death case.
The bodies of seven women and four men were found in a house in Burari area on July 1.
Earlier, Joint Commissioner of Police, Crime Branch, Alok Kumar said that post-mortem of all the 11 bodies have been completed, and initial reports suggested suicide.
Till now, over 200 people have reportedly been interrogated in the case so far.
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