scottish law

I am a defender against a petition raised against me in relation to property I purchased years ago. Previous owner has raised a summery application against me in the sheriff court. I have to answer the petition by lunch time tomorrow. I have just discovered that the Petitioner has falsified evidence x2.
I need advice on how to handle this situation, perhaps lodge a motion to obtain a warrant for the court to demand the evidence of falsification.
This is short notice I need advice today