Sorry I've been away, moving again, this time (hopefully) permanent...just 5 min away too!
Badges and ID cards are legal in AZ, the only stipulation is you cannot identify yourself as an employee of federal, state or any state-sponsored agency. See ARS-13-3885 (what we live and breathe by in AZ), Section B(3):
"B. A bail recovery agent or a bail bond agent shall not do any of the following:
3. Wear, carry or display any uniform, badge, shield or other insignia or emblem that implies that the bail recovery agent is an employee, officer or agent of this state, a political subdivision of this state or the federal government. A bail recovery agent may display identification that indicates the agent's status as a bail recovery agent only."
I'm usually blending in as much as possible, unless credentials or ID are needed...such as booking in 4th ave jail. It's difficult to get buzzed into the sally port with your principle without visible ID that the guard desk can clearly see in his camera. It's all about presence and professionalism IMHO. I blend in, then present ID when needed. If I go prancing around with badge, gun, mace everywhere I go, I'm no better than the cowboys that make our lives hard. That's at least my two cents.