You are entitled to discovery under the court rules but it often takes a while to get these documents from the State Police. If this goes 5-6 months then you certainly should ask the Judge to dismiss the case.
It would be helpful to know what are the specific charges you are facing.
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The prosecutor does not control discovery or what is relevant, the Court does. File a motion for discovery. if the judge grants the motion and it is not porovided you can move to dismiss. If the court denies the motion you can appeal the denial. You do not mention the charge. i'm guessing it is a mnor moving violation. What you are doing is unusual so the system will balk at first. All State Police cars have video and it is discoverable.