Three of Japan 's largest banks are under scrutiny for making loans to underworld groups . Mizuho has punished 54 executives loans to people affiliated with the yakuza , the Japanese mafia . Belonging to a yakuza gang itself is not a crime . The bank is also investigating a number of other cases involving loan sharks and money launderers in Tokyo.
Three of Japan 's largest banks are under scrutiny for making loans to underworld groups . Mizuho has punished 54 executives loans to people affiliated with the yakuza , the Japanese mafia . The bank is also investigating a number of other cases involving loan sharks and money launderers in Tokyo.