Scarlet Letter style then.

We do have an education system on drugs ( D.A.R.E.), it just happens that it's not completely factual. Marijuana is lumped in with the heavier drugs, and is told it's a no no. I have heard claims that makes it easier for people to jump from it to the harder ones because, "Hey, what does it matter? It's only a bit worse."

That suggestion embodies informal sanctions as a means to restrict a person's behavior because they don't want to be embarrassed. Only problem is that that works best in smaller communities and groups.

There was the law that required sexual predator's to be registered, and people can look them up thus that is similar in nature to what you described. I wonder how much of an impact that has had on those crimes. I think a lot of people don't really know about it so it's impact is minimal.