We've been notified that there are fraudulent treasurers checks on our Bank circulating around the country. Do we file a SAR to report that?

Yes. Your bank is being used unwillingly in an attempt to defraud. As soon as you can see that the aggregate of these bogus checks has reached $25K, you should file, even if your bank doesn't lose a cent.

Don't forget to contact the FDIC to get a fraud alert out there. And contact crimedex@bankersonline.com to get the information publicized with the members of that organization, which includes law enforcement in the field, fellow bankers, and retailers.

John,
Since the aggregate amount is $25,000, regardless of the potential suspect, would we want to file on a situation where someone received a fraudulent check for <10,000 for the purchase of a boat. The consumer deposited the check in his account, at another bank, and we realized it was a fake when it came thru our bank for payment? Or would we not file since we don't know who issued the fake treasurers check?

If there is only one bogus check involved and you don't have a suspect, you don't have to (but may) file. But keep your eyes open. If there's one bogus check, there can easily be more.