Registering fir for non-cognizable offence.

Dear Members, Police Station Incharge has registered FIR for non-cognizable offence and now investigation is pending. Offence took place 5 months back. What can I do teach such police officials a lesson ? Pls help me. rgds. This is seriously a issue of criminal procedure as section 155(2) deals with the non-cognizable offence. Is there any case law, in which police official has been suspended for showing such negligence/intentionally blackmealing of accepting bribes. Regards,