This is a special item in that it appears in every case. This is the attorney badge that every defense attorney wears to show their profession. The badge has been in possession of Phoenix Wright, Mia Fey, Apollo Justice and Miles Edgeworth. Wright gave Edgeworth his badge during Bridge To The Turnabout so that he could take his place in court whilst he was ill in hospital.
Phoenix loses his badge in Apollo Justice: Ace Attorney when he is accused of faking evidence, however he didn't know it was fake. At the end of the game, he is cleared of the claim, and thinks about taking the bar exam to regain his badge.