Privatize police forces and make them all wear cameras on their person. Have insurance companies take up the role of policing. They already are nationwide/international entities with large amounts of capital at their disposal. They could easily take up the task. Have communities decide which private police force they will go with. The insurance companies will compete to provide the best service possible i.e. higher quality of policing, lower prices, less brutalities, etc. If a community does not like the private police force, they can always change companies.
You will see less brutalities, less corruption, better response times, etc.
You will see less brutalities, less corruption, better response times, etc.