The last major advancement of this process was the creation of the “School Resource Officer” which is typically filled by actual cops.

It’s hardly a new development. We had armed and uniformed cops with permanent offices in our local schools over 40 years ago. Their primary role—from our perspective as students, at least—was to arrest native kids, and gently scold white boys who “smoked weed at home” (read: were the actual drug traffickers).