Four criminal raids highlight how golf’s biggest brands are fighting fake clubs and protecting golfers from counterfeit gear.

Authorities in China have recovered more than 100,000 fake golf clubs in a series of raids with eight suspects detained.

Counterfeit consumer prod-ucts have penetrated vir-tually every segment of the U.S. economy. With the advent of the Digital Age, and despite the recent efforts of the U.S. Immigration and Customs ...