Law enforcement based on the Peelian principles is not a tennable thing. Sure, every US beat officer will learn it in training but they also learn the public is the enemy, which has been the way of things for over a century.

if we could imagine a new age of policing, it would involve much less enforcement and much more prevention, mostly disincentivising people from engaging in desperation crime. Heck, we might even end retributive sentencing for a more restorative system.

If we dropped our current law enforcement -- the whole thing -- and turned to investigating and intercepting elite deviance (white collar crime) we would save more lives, prevent more damage and more cost by orders of magnitude. Not that law enforcement actually does much to reduce crime.