Excuse my interjection, but I disagree with forbidding police unions. Medical error causes more mortality and morbidity than police error, but doctors are not forbidden from joining associations that advocate on their behalf.
I would like to see police follow the medical model with state licensing akin to state medical licensing. Such licensing would include:
1) Evaluation of training record
2) Review of complaints as well as criminal and civil litigation
3) Mandatory liability insurance
I am not even against police unions running their own liability insurance companies to make sure officers get the best deal.
This proposal would create a balance to police unions in the form of licensing agencies, which could suspend nor not renew licenses, and in the form of insurance premiums, which would rise with increasing claims.