If you are a compliance officer in Los Angeles, you may want to review this 145-page Federal Indictment, naming 80 defendants, accused of wire and mail fraud, identity theft, and money laundering. Most of them appear to be Nigerian nationals.
You may find some of your bank clients in the filing. United States of America vs. Valentine Iro et al, Case No: 19-CR-00380-fmd ( C.D.CA. 2019). Read the Indictment here.