man caught with pistol in locked glove box, by undercover drug raiders, not registered to him, but llegally registered to his girlfriend. he was located in a known high drug trafficking area and was approached by undercovers and with him were to 18 year olds, both with possession of marijuana 1 under 5 grams and the other over 20 grams...the first man may only charged with possession on firarm with no concealed weapon to carry it. hes not a convicted felony, but currently in the drug court treatment (for first offense). is there anyway to fight it since the weapon is not stolen and is llegally registered and was locked (with ignition key) in the glove box? if charged, what would the maximum charges be that he may face?