Sreekumar said that assistant director with the Bangalore based Forensic Science Laboratory, Malini, during questioning by the investigative agency, had said that Joseph had viewed the CD in May last year. The counsel made the observation after the victim's father A. Thomas filed a contempt petition against the CBI for failing to investigate reports that the CD containing the narco-analysis tests was not original.

The Kerala High Court had earlier directed the CBI to verify the reports that said the CD was tampered with.

The body of Sister Abhaya, a resident of Pius X Hostel, was found in the well of the Kottayam convent March 27, 1992. The charge sheet filed last month names Thomas M. Kottor, the diocesan chancellor of the Catholic Church at Kottayam, Jose Putarika, a former professor at the Kottayam College where Abhaya studied, and Sister Seffi, a resident of the convent when the incident took place, as the accused.

The CBI had arrested the three Nov 19 last year but they secured bail Jan 1 this year.