Overview
A permanent ban is the most severe sanction the NPB Commissioner can impose, permanently excluding the individual from professional baseball. The banned person may not participate as a player, coach, manager, or club employee in any capacity. Permanent bans are reserved for acts that fundamentally destroy the sport's fairness and public trust: match fixing, collusion with gambling organizations, and participation in baseball gambling. Only a handful of individuals have received permanent bans in NPB history, but the impact has been profound. During the Black Mist Incident of 1969-1971, Nishitetsu Lions pitcher Masaaki Ikenaga and several teammates were permanently banned. Ikenaga was an ace-caliber pitcher at the time, and his expulsion sent shockwaves through the baseball world. His ban was lifted in 2005, but the lost playing years could never be recovered. The permanent ban system serves as the ultimate safeguard of baseball's integrity. The severity of the punishment itself functions as a deterrent, signaling the enormous cost of misconduct. However, debate continues over the criteria for imposing bans and the possibility of reinstatement, with some advocating for graduated penalties proportional to the degree of involvement.