Detectives,
I would also like to add my belief that we should drop Polic(y)-[E]nforcers and seek to have detectives for actual victim-based crimes.

Proxies,
as mentioned above

and Mentorships
parents and skilled masters should train people who wish to join their trade, and schooling should be abolished outside of these interactions.
No one should create a degree, a simple certification would be all that would be needed to prove worth.