NEW DELHI: The Central Bureau of Investigation, which has not found any criminality in the 14 preliminary enquiries registered on the basis of intercepted conversations of former corporate lobbyist Niira Radia with some influential persons, is likely to seek closure of probe during the next hearing in the Supreme Court. CBI sources said the agency had thoroughly checked all the tapes but did not find any material evidence on the basis of which a regular case can be registered in any of the 14 preliminary enquiries. Times of India had first reported that the CBI did not find any criminality in Niira Radia tapes.The sources said the Supreme Court would be informed about the agency’s findings during the next hearing in March. They said a final decision whether to close the enquiries or further probe them will depend on the directions of the Supreme Court which had handed over the probe to the agency.Several government officials and executives of Reliance Unitech and Tata Motors have also been examined by the agency in connection with its enquiries.The apex court bench, headed by Justice G S Singhvi, had ordered CBI to probe 14 issues that were identified by the investigating agency after going through the transcripts of the Radia tapes submitted to it by the Income Tax department.The court has also referred one of the issues to the chief vigilance officer of the department of mines for investigation and another to the Chief Justice of India. "Radia’s conversations reveal deep-rooted malice by private enterprises in connivance with government officials for extraneous purposes," the Supreme Court had said.Using strong words, the court had said the telephonic conversations suggested corrupt means being adopted by private parties to extract gains.