The Supreme Court came down heavily on the Central Bureau of Investigation for failing to question former Telecom Minster A Raja and Telecom Secretary in the 2G Spectrum scandal, saying it was "beating around the bush."

A bench of justices G S Singhvi and A K Ganguly wondered why the premier investigating agency failed to question the duo despite the Chief Vigilance Commissioner and Comptroller and Auditor General report sharply indicting them for their involvement.

"We are on the limited point.

The CAG under the constitution has a very important position. It is an authority set up under the constitution. Any responsible person will question the involvement of the Minister and the Secretary and you (CBI) say that 8,000 documents have been examined. You are beating around the bush. It was (questioning) minimum expected of the CBI. What do you take this court for," the bench observed during the argument.

Explaining the delay, senior counsel K K Venugopal submitted that the CBI has got its own methods of investigations.