There is a fact regarding thiefs.
A thief steals to gain.
Most of the time the theif steals to gain from a buyer.
This means the buyer is driving the theft market.
Take time to know what you are buying, know where it was designed and manufactured, and know whom you are purchasing from.
If you knowingly purchase knock off, stolen design/intellectual content, copied items, or just plain stolen items (hot parts) YOU are the problem driving the market and YOU are complicit in the illegal activities and downfall of the harmed parties.
Remove the gain for the thief and that theft is likely to diminish to almost nothing as the thief now only steals to serve himself, rather than serving a buying market.