ABC 20/20: To Catch A Fake

ABC 20/20 goes in the field with the authorities trying to protect consumers from dangerous counterfeit consumables. The Phoenix Police with Sgt. David Lake's B.E.S.T. squad show us why buying a counterfeit may give you more than a good deal.

Inside the $500B World of Counterfeiting

Act 1: Aside from being fake, many counterfeit products can be dangerous and contain heavy metals.

On the Move with Elite Teams on Counterfeit Busts

Act 2: ABC News' "20/20" joins police squads on the front line of the war against counterfeiting.