Chandigarh, Feb. 4 -- Arrested in the 2.5 crore bribery case, Shimla ED assistant director Vishaldeep and Delhi CBI DSP Balbir Singh were produced in the court by the investigation teams on Monday.

The CBI court of special judge Alka Malik granted permission to take voice samples of accused Vishaldeep and Balbir Singh. The voice samples of both the accused will be matched with the call recording provided by the complainant.

Vishaldeep, assistant director of the Directorate of Enforcement (ED), posted in Shimla unit was arrested last month by the Panchkula police on charges of demanding Rs.50 lakh as extortion. He is accused of threatening the complainant's son and hatching a conspiracy to demand extortion through gangsters.

The bribery...