Authorities say with the use of new technology the fake money is looking more like the real thing.
Last week, a sophomore attending Leon High School was arrested for passing fake 20 dollar bills. Since September, the Tallahassee Police Department has seen an 85 percent increase in counterfeit currency cases.
SGT Bill Bierbaum says, "We've seen the bills passed at some of the night clubs and maybe there is low light and people just not paying attention to the security features."
Agent Robert Munson with the U.S. Secret Service says counterfeiters have done away with the old offset printing method.
Robert Munson says, "The new notes that are being printed are the computer generated notes, we call them the p-notes. They're more difficult to track because anyone can pretty much print a colored note on a copier now."
Agent Munson says the rise in cases can be attributed to area retailers becoming better counterfeit spotters.
Munson adds, "If they shine an ultraviolet light source on the bill, it will highlight the color of the security thread and that will tell them which denomination they should have."
Munson says if you think you may have a counterfeit note, you should contact the police immediately. Agent Munson says most banks are pretty good about detecting counterfeit notes, so there's a great likelihood you won't end up with one.