...but nothing smells like marijuana but marijuana.....Not cologne, not body stench. Neither have I posed a marijuana related scenario.
I related a 'smell' connected to a legitimate 'bad-act', e.g., residential arson.
That aside, if you think some perfume can be confused for reeking of a petroleum distillate (gasoline), then you are not being honest with yourself or you have led a truly sheltered life.
So, back to my scenario, is this simple construct sufficient in your world to authorize an investigative detention?
I know what 'the courts' have said and don't care. I want to know where someone who says that a smell is 'never' a reason, draws the line, if at all.
When one makes a definitive statement, such as you did, it deserves to be tested.