Some bad checks cannot be prosecuted in the criminal justice system. Post-dated checks, which are noted as good after the date the check is actually passed, are ineligible for prosecution. This is because the merchant cannot reasonably expect a check dated in the future to be valid on the date it was given as a form of payment. Such checks establish a lending contract between the check writer and check recipient, and create a credit transaction.
In some states, such as California, checks drawn on out-of-state banks cannot be prosecuted as a crime. Many states also require the check writer's government identification to be checked before accepting the payment. Failure to handwrite the identification numbers, such as a driver's license or Social Security number, upon the check can also make it impossible to prosecute a check criminally.