Aarushi Murder case

The CBI claimed Krishna, compounder of dentist Rajesh Talwar, had given a "confessional statement" before it even as a forensic examination of the knife seized from his residence last week was being conducted to ascertain whether the weapon was used in the Noida double murder case.

Talking to reporters at it headquarters, CBI Joint Director Arun Kumar, who is investigating the case, said Krishna's confessional statement had been recorded under

Section 161 of CrPC (confession before a police official) but refused to divulge as to what he had owned up -- either being the killer or part of the conspiracy to kill 14-year-old Aarushi.

Source