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You're right, but that's not what we see. Possessing marijuana is a crime. Where is the damage? Where is the victim? (Try to forget for a moment that some states have legalized marijuana. It's still a federal crime. But it's an easy example of a crime.)

So, let's see your definition of the word crime. I gave mine.

I had already put it in the thread, it was right below this post last I checked. I think @everittdmickey put it well, a crime is anything the gov says it is.

FWIW I believe your definition is more correct if we were still under common law. Unfortunately we're not.