Black money scam
The black money scam, sometimes also known as the "black dollar scam" or "wash wash scam", is a scam where con artists attempt to fraudulently obtain money from a victim by convincing them that piles of banknote-sized discoloured paper are real United States dollars that has been stained or dyed. Some scammers claim the money was dyed after it was seized by the Drug Enforcement Administration during investigations, and has been stained to prevent it being circulated back into the world economy.