Final answer:
The driver, a convicted felon, might be charged with possession of ammunition if state law prohibits felons from possessing ammunition. If no legal prohibition exists or is applicable to this person's situation, no charges related to the ammunition found may be filed. Option(4) is correct.
Step-by-step explanation:
The question relates to the potential criminal charges faced by a driver with a prior felony conviction after being found with 9mm ammunition during a consensual vehicle search. Based on the information provided, the fact that the officer did not find any firearm suggests that there is no evidence of illegal firearm possession (Charge 2). The driver cannot be charged with robbery (Charge 3), as this was a past conviction and there is no indication of a new offense. However, since the individual is a convicted felon, depending on specific state laws and the terms of the individual's release, they may be prohibited from possessing ammunition and could potentially face charges for possession of ammunition by a convicted felon (Charge 1). The precise charges would be determined by local laws regarding felons' rights to possess ammunition. If the search turned up no other contraband and there were no other violations, and if the possession of ammunition is not prohibited by law for the specific circumstances of this individual, then no new charges may be applicable (Charge 4).