Spot the Fake
The counterfeiters selling chalk, powdered concrete, and boric acid (or worse) as if they were real drugs are very good at making their product look like the real thing. How good? So good that sometimes not even the experts can always tell the genuine drugs from the fake ones without analyzing its chemical composition. See some examples of what actual counterfeit drugs look like and notice how well counterfeiters package their products to look authentic.