It took the arrest of Macau-based junket operator Suncity's CEO for the company to be stopped from running private gaming rooms at Sydney's Star casino.
A meeting of Star managers in 2018 heard of a "big fat red flag" that the junket operator was breaching its agreement with the casino and posed a money laundering risk, years before it ceased operating.
Star's general manager of financial crime and investigations Kevin Houlihan on Thursday resumed giving evidence to the NSW gaming regulator's inquiry into the casino's fitness to hold a licence.