If the police are called to a branch over a suspicious situation, can they be provided with a copy of a driver's license and/or a copy of a check that was attempted to be cashed without violating any regulations?

is the bank a potential victim?

Is the dr lic a customers or part of a fraud traction?

The bank could be.

RFPA would only apply if the "police" were federal and the individual had an account at your instituition. Absent RFPA, it would purely be an issue of state law. As suggested by the previous question, if the bank was the intended vicitim you would have a right to provide the information.