I will answer your question from the end question. Police have no jurisdiction over cheque bounce offences. I had served as Judge for Cheque Bounce case in Bengaluru itself. I have seen several varities of cases. Your intimations to the bank hold good and whenever he issues a notice we can approach the HC and get the notice itself quashed. If he files one such case then you can get it quashed in HC. If fraudulently FIR is issued for cheating case then also you have defense. Simply issueing cheque does not give cause of action for him to claim. The primary burden is upon him to prove that consideration was passed to you then only presumption would arise. Thus from any angle it will fail Please come to my office in Benaluru.