Only difference between general CHTR and Police ops (in Qld anyway) is the pax often wear matching bracelets......
Qld Police Airwing kicked off in 1975 with a coupla ex-Army C180s, as part of the Qld Govt Air Wing. Since then, it has progressed through C210s, C402, B200, B350 and now has a C560 (PSU) & a C208 (PSQ) in BN, a B1900 (PSK) & a C208B (PSY) in CS, a C208 (PSV) in MA, and will soon have a BN2B-3, pilot & hangar in HID.
All pilots are civilian with no Police rank at all. This works on the premise that the role is highly specialised and technically demanding and is best managed by a person whose sole focus is the aviation task.
All ops are PVT.