and don't report back to parents or students, I do check in with counselor and principal to keep up-to-date on results. And there are results.
Our incidents are infrequent, and smaller in scope; maybe because we catch them and address them quickly, maybe because we work really hard at building a positive community.
I know it's frustrating for admins when it's a "he said, she said" situation, with no other evidence. We usually have a pretty good idea who is telling the truth, but without some proof, the admin can't take one person's word over another. Fortunately, this is the exception rather than the rule, and if it happens, everyone, including playground and cafeteria supervisors, are put on alert to watch those students more closely. If it happened once, it will happen again, and we'll nail it.
I think the difference in some schools might be one of size. My school is small, and everyone knows everyone else. It's hard to get away with anything, it's hard to "fall through the cracks," and we catch things faster and more often than in larger schools where it's easier for individuals to slide under the radar, and harder for the adults to get to know all of them as closely.
We are more of a community than an institution. I admit to bias; I think all schools should be that way.