After registering a Preliminary Enquiry, the CBI Director

Ranjit Sinha formed a special team to ascertain whether the corruption slur on its prosecutor in the 2G case was an "aberration" or some other individuals have also been allegedly compromised. Statements of the officials were being recorded as part of its probe into allegations that Singh was discussing prosecution strategies with Chandra. The suspected voice on the tape, said to have been recorded in September last year, is also even detailing a three-judge Supreme Court judgement which could be used as a reference in the legal strategy. The CBI Director had informed Chief Justice of India Justice Altamas Kabir, and Law ministry officials about taking off Singh from the prosecution team.