Canadian banks have had a money-laundering problem since the 90's when Chinese gang money moved to Canada and started being laundered through BC casinos ... which in turn went to buying up properties that helped start the housing crisis.
https://globalnews.ca/news/4897032/bc-casinos-money-laundering/
https://globalnews.ca/news/8277350/bc-casinos-money-laundering-cullen-commission-closing-arguments/