I feel like we're at a crossroads: Hire huge battalions of union dues-paying forever-rookie police behind an iron curtain and arm them to the teeth, or Operate

I feel like we're at a crossroads: Hire huge battalions of union dues-paying forever-rookie police behind an iron curtain and arm them to the teeth, or Operate a modernized, transparent, outcomes-based criminal justice system. It would be interesting to understand why so many politicians and police themselves talk about the latter while quietly implementing the former. What's in it for them?