Walker: Concealed carry needs permit, training

Walker: Concealed carry needs permit, training: "Police are calling for permits and a database that officers could check to see if people they encounter might be carrying."

So they would know if they are talking to a law-abiding carrier? Do the law-abiding carriers matter? They wouldn't be able to look up the person until they asked for ID so wouldn't that be too late to do any good anyway?