Satish, You are right, but unfortunately in our country's case, if police botches up the case CBI is the only trusted alternative. If we look at the bigger picture, almost all of us agree that police was incompetent enough not to do their job properly. Then CM brought STF. They were also unable to crack the case along with hurting sentiments of people. Now what next? Should we just close the file? I think CM did the better thing by passing the buck to a higher competent authority. If she does not pass it to CBI then case is over right now. case is dismissed no guilty found. However now at least we have a hope that guilty will eventually be found and punished. So at least CM tried her level best to get an outcome of the case.