The UK's anti-money laundering regulations have a wide reach, affecting art dealers, advisers, and interior designers.

The U.K.'s HM Customs and Revenue has hit dozens of galleries with fines for not complying with the latest anti-money laundering regulations. Photo: Getty Images.

After a five-month trial in Leeds, UK, the bankrupt socialite and former art collector James Stunt was found not guilty of taking part in a £266m money-laundering operation. He was accused ...