Make clear what happened and why you’re suspicious. The law enforcement will likely Use a copyright detection pen they can use to mark the bill. When the mark turns dark, it’s probably that the bill is fake. Fakes also don't have ordinary luster, where present it's got a Strange foggy/hazy https://sethgbuoh.ltfblog.com/34109837/the-basic-principles-of-copyright-us-coins-for-sale