As a little background, as enacted in 2004 and signed by George W, the law was intended to put more trained and certified officers on the street in the event of a terrorist attack, especially after 9/11. The law has since been amended, and still contains some confusion, but it includes any officer (regular, reserve, volunteer, etc.) with ten years verifiable service who is either retired or separated under honorable conditions and is firearms qualified once per year by a certified firearms instructor.
Military and DoD officers who either had arrest or restraining authority operating under UCMJ were later included along with other agencies both Federal and State. A problem still exists for most military and DoD officers to obtain a picture ID from their agency stating that they are retired/separated from this occupation with the minimum ten years of service.
Most retired police officers carry whether legal or not and depend on 'professional courtesy' to walk themselves out of a potential problem. LEOSA solves a lot of these issues and at the same time enhances law enforcement capabilities. In these troubling times I think it is an excellent law.
- Ed