First, slash cop wages. Cap government employee wages at twice the median household income for the area they serve. Use the massive savings to drastically increase the police force. Sure, you'd have fewer ‘qualified’ cops on the street, but you'd also have a heck of a lot more bodies and a reduction in the impression that they're some elite bastion against the criminal element.
Second, apply the law equally. No special rules for any public employee; no exemptions from gun restrictions, no immunity from prosecution, no immunity from civil litigation. If a citizen would be arrested and tossed into jail for shooting someone, so too should the cop. Maybe a lot of insanity in persecuting those who exercise their rights to self defense would go quickly out the window.
Since this would also immediately take away a lot of the toys (is that automatic rifle permitted to everyone else? No? Time to sell it off, SWAT team...) I don't think a lot of further action would have to take place.
Law enforcement should be heavily automated with non-lethal robots. Machines do not have a life to lose so have no legal basis for preemptively killing people. They also work for the price of electricity and do not treat minorities differently. Automate jails so we can afford to keep criminals off the streets longer. 80% of crime occurs because we let career criminals out of prison early.
“First, slash cop wages,”
You’d just get more of the ones who are in it pretty much for the power trip and ability to make life miserable for normal people.