Sometimes the program is handled internally by the law enforcement agency itself, which often generates a substantial portion of its overall budget from the check fees that it collects . In many cases, the law enforcement agency signs up with a private collection agency. The private company essentially pays the law enforcement agency a small portion of the fees it collects in exchange for permission to send demand letters on official law enforcement agency letterhead and to threaten to prosecute check writers who do not pay up to $200 in fees, plus the check itself. This is when, in most instances, there is no criminal case to dismiss, and no law enforcement official has reviewed the check writer's file to even determine if there is/was evidence of a crime .