FIR Quashing related short question

Hello, I have filed an FIR, opposite party has filed quashing petition in High Court of Gujarat against it. I intend to file another F.I.R under IPC 420 etc. against same accused, both the matters are interrelated, now, there are few points in their quashing petition which I think will be helpful to me in filing new FIR. My questions are as below: 1. Can I use their petition as evidence in filing another F.I.R? 2. Will trial court accept it as evidence? (One policeman which I think is in hand in glove with accused refused to accept it as evidence saying it was for quashing of old FIR, for which we have approached seniors) 3. I am pretty confident that their quashing petition would not stand, if on next date they ask judge to withdraw it, and judge allows it, will I still be able to use it as evidence? 4. As per my knowledge anything which is related to the case can be used as evidence, and this petition is made on affidavit in the high court, so it should be admissible in other related case as well. Am I correct or not? 5. Can I request judge not to allow them to rectify/edit or withdraw petition and get it dismissed on merit? If it gets dismissed will I still be able to use their petition as evidence in trial court? 6. If it is accepted, how much weight can a trial court give to such submission made on affidavit in high-court? Thank you.