Rob Holmes is a private investigator. He works with major luxury-watch brands to track down fakes and stop them from getting to market.

Holmes speaks with Business Insider about how counterfeits are made in factories overseas. He gives details about how fake luxury goods are trafficked into the United States and distributed to consumers, tells us how the counterfeit industry has evolved with the rise of a new generation of "superfakes," and gives advice about how to spot a counterfeit. He also examines a genuine Rolex and gives tips on how to spot a genuine watch.