If they wanted you to carry a badge then the sheriffs dept should have them engraved with your permit information and present it to you at the CCW banner beauty pageant.
I look at more than just a badge to determine if someone is a LEO. For instance if some stranger flashed a shiny badge and a nickel plated sissy pistol, I would know he is full of crap and call 911, time to get the real police involved.
On the other hand, some guy jumping out of a marked squad car, carrying a gun 'while' wearing short shorts and rockin' an 80's mustache is most definitely the police.