New Delhi, Mar 26: The CBI, which is probing the match-fixing allegations in cricket, will decide on filing a regular case only after examining Kapil Dev, agency sources said here today.The sources said things would be more clear after examining Kapil Dev and corraborating the deposition of former all-rounder Manoj Prabhakar before the agency.The agency had filed a Preliminary Enquiry (PE) in the case on May 2 after receiving request from the Sports Ministry to probe various aspects of match-fixing.The sources said if the agency did not find any substantive material after examining Dev, it might consider the option of closing the investigations.Meanwhile, Kapil Dev, at a hurriedly called press conference late last night, said he was ready to depose before the agency, if it called him.Among the witnesses cited by Prabhakar, the CBI has already questioned former team manager Ajit Wadekar and cricketer Navjot Sidhu and will be shortly examining others including former skippers Mohammed Azharuddin, Sunil Gavaskar and Ravi Shastri, the sources said.The CBI is likely to procure soon the tapes which allegedly contained conversation about match-fixing, from the Mumbai police and Directorate of Revenue Intelligence (DRI), they said.An application for the procurement of these tapes has been moved and the agency is hopeful of getting them soon, the sources said.The crime branch of Mumbai police and DRI stumbled upon conversation about fixing of a match in 1995 while solving a case of kidnapping of a businessman in the metropolis, the sources claimed.