Answer:
I agree that he should not be depositing third party checks. I suggest that you first contact the institution's legal counsel for guidance. Then consider contacting your local office of the IRS - Criminal Investigation Division (found in the white pages of your local telephone book) for guidance. Based upon what you've shared, you may have enough cause to file a SAR and the IRS will help you make that determination. Be sure to document your investigation well.
First published on BankersOnline.com 8/16/10