Bhubaneswar, Feb. 4 -- Forensic Psychological Assessment (FPA) and Layered Voice Analysis (LVA) tests of the accused Gopal Das (a former ASI of Odisha Police) are being conducted today by a team of the Central Forensic Science Laboratory (CFSL), New Delhi at Jharsuguda in connection with the murder of Odisha Health Minister Naba Kishore Das, who died in gun attack on January 29 in Brajarajnagar.

"A special Medical Board has been constituted to study the mental health of the accused," a press release issued by state Crime Branch in this regard mentioned.

According to a private source, when an interviewer keeps questioning an accused, the LVA technology helps analyse the changes in the latter's voice in order to determine whether the accu...