proper enquiry by virtue of enabling powers conferred under Sections 200 and 202 Cr.P.C to call for the evidence/sworn statement of the complainant and to summon the requisite documents including statement of accounts, account opening form etc from the bank and from whose account the above said cheque has been drawn and ascertain as to whether it is a single account or joint account etc and as to whether the petitioner or the other accused are account holders of that account etc. The trial court would be also at liberty to summon any officials from the bank concerned if more light is to be drawn into those details. Resort to the enquiry under Section 202 of Cr.P.C should be done by the trial court in an effective and proper manner, so as to arrive at a proper decision as to whether or not cognizance is to be taken as against the petitioner herein. At that stage, the complainant could certainly participate in that process but the accused will not have any role as it is at the stage of pre cognizance stage. If after due consideration of all relevant materials, the trial court is convinced that there are no sufficient grounds for proceeding against the petitioner herein, he will be at liberty to refuse to take cognizance as envisaged under Section 202 of the Cr.P.C. If the trial court is convinced that cognizance is