Automatic teller system and method of marking illegally obtained cash

摘要: An automatic teller system and a method of operating the wherein can receive personalized normal PIN or duress from user. If user enters PIN, determines that it is actuates silent alarm to notify authorities possible crime. The will then simulate transaction, perhaps with reduced maximum withdrawal amount, so as not alert thief potential has been actuated, while dispensing bills marked special ink visible only when viewed under light. Also, serial numbers dispensed are recorded by automatically communicated authorities. Under conditions, preferable monitoring ATM be enhanced.