Our Police, CBI and IB might be corrupt. But they are a reflection of our political system. After all our politicians who are our ministers decide which IPS officers would be be posted where. So long as there is corruption among the politicians, there would also be corruption among the the officers bearing high posts. If a IPS officier is honest and want to do all good thing he would not be able to do it. He would be transferred to a remote location by the ministers, if he acts against their interest.