Police are asking area merchants to be on the lookout for Community National Bank checks from the account of Eugene L. Tessier Jr., bearing the check numbers 684 to 700.
Tessier, 25, of Derby, was the victim Wednesday evening of the larceny of his checkbook and the forgery of at least one of the stolen checks.
Sometime between 7 and 8:15 last night, someone stole the checkbook from his pickup, parked at Derby Lanes on Main Street.
At about 8:30 p.m., a male whose identity has not yet been provided - forged and cashed one of the checks at Grand Union in Newport. The forgery was immediately discovered, while the culprit was still in the store, because Tessier's girlfriend, Cassy Moulton, is a cashier at Grand Union and was working at the time.
When Moulton and another store employee confronted the suspect, he ran from the store with the money he had received from cashing the stolen check still in his hand.
Several witnesses in the store identified the suspect, but because Newport and state police are still conducting the investigation, the name will be released only upon completion of the investigation and subsequent arrest of the man.
As the rest of the checks are still at large, police ask that any merchant who is given one by anyone other than Tessier, to please notify the Derby barracks immediately.