RJD leader Mohammed Shahabuddin, an accused in journalist Rajdeo Ranjan murder case, has refused to undergo a lie detector test, and is not cooperating in the probe, CBI sources said on 2 June.
Shahabuddin, a four-time former MP from Bihar's Siwan parliamentary constituency, was "lying and concealing" facts related to the case, the CBI said.
The agency will inform the special court in Muzzafarpur court about the development.
Ranjan, the Siwan bureau chief of a Hindi daily, was allegedly shot dead by Shahabuddin's henchmen in May 2016. The Bihar politician was in jail in connection with other criminal cases against him when the incident happened. He was later shifted to Tihar jail.
It is mandatory to take consent of the accused before subjecting them to polygraph test, also known as a lie detector test, the sources said.
The agency is questioning Shahabuddin after obtaining his custody for eight days in connection with the case. The eight-day custody will end on Monday.
(At The Quint, we are answerable only to our audience. Play an active role in shaping our journalism by becoming a member. Because the truth is worth it.)