Area police are asking businesses to be on the lookout for fake one hundred dollar bills. Police say two of the counterfeit bills were used at a Laclede County business before noon Monday. Both bills shared the same serial numbers and other similar characteristics. Officials said they suspect there may be numerous large bills being used throughout the lake area and they may soon be in contact with the Secret Service to conduct a Co-Investigation. Lake area businesses are reminded to check large bills closely and if you receive a bill that appears to be counterfeit, try to identify the person using the bill, and contact your local police department.