CID folks: Watch "Forensic Files" which is telecasted in USA. That is really a cool version of investigation and is based on real stories. Take ideas from there and make CID serial and/or movie a quality stuff to watch. Currently CID serial isn't up to the mark...Plz note that am a CID fan and hence, criticizing whats not good and also giving you a suggestion to improve. I hope this helps!
Make it an interesting one.Which can make the audience to wait till the end with likely twists where in the audience should be in a dilemma as who is the real culprit. Also give substantial evidences(Make use of the advance technology)which can make the audiences and Investigating companies to follow and alert the people about the different technologies that are present to nab the culprits.Which can make the government to follow. Use strong points rather than weak points.