According to Sankei News, mangaka Fukumoto Nobuyuki
served as a one-day police chief at Zushi
City police department. He distributed handouts of Kaiji
to promote the campaign to eradicate phishing scams via phone. On the handout, Kaiji tries to stop people from paying money to swindlers.
Picture of Fukumoto in the police uniform
Fukumoto was invited to the police station because one of the officers was his childhood friend.