Luke Skywalker has the benefit of using the Force to determine whether an autograph is a forgery or not but you don’t. Star Wars’ Mark Hamill is teaming up with California lawmakers to fight the distribution of counterfeit autographs.

In late December, Mark Hamill took to Twitter to warn Star Wars fans or even Batman: The Animated Series fans that there are a lot of merchandise bearing fake autographs of his signature floating around. Hamill, in response to Twitter inquiries, was able to tell fans which autographs were real and which were fake. Hamill urged fans to memorize the signature that can be seen to the right because it was the real deal.

Hamill’s battle with the counterfeits caught the attention of California Assemblywoman, Ling Ling Chang, and now the two are teaming up to take on the Dark Side. Chang introduced a bill, AB 1570, that seeks to make certificates of authenticity a requirement for signed memorabilia sold in California. At this time, only sports memorabilia is required to contain a certificate of authenticity in California.

Hamill told the *Los Angeles Times *that “[t]he public is being swindled on a daily basis and the numbers are huge…I just can’t keep quiet when I see people I love being hurt.” He also stated that fans are “stalked by these dealers that have shopping carts with 50 posters and stacks of photographs.” Memorabilia is big business and will continue to be so for Hamill who will appear in Star Wars Episode VIII due out in May 2017.

