Keita Katsura, the president of a Shiretoko tourist boat company, was sentenced to five years in prison for professional negligence [1].

The ruling establishes legal accountability for a disaster that decimated dozens of families and highlighted systemic failures in maritime safety protocols during extreme weather.

The sentence was delivered June 17, 2024 [2] at the Kushiro District Court. The charges stem from a sinking that occurred in April 2022 [3] off the coast of the Shiretoko Peninsula in Hokkaido. The accident resulted in 26 people dying or going missing [1].

Court findings indicated that strong winds and high waves made safe navigation impossible on the day of the disaster. The court said Katsura should have halted the voyage despite weather forecasts, and his failure to do so constituted professional negligence resulting in mass fatalities [1].

During the proceedings, Katsura addressed his decision-making process. He said that because the weather shifted, he judged it would be fine if they could return by the morning [4].

Prosecutors criticized the operator's lack of regard for safety. A prosecutor said that the attitude regarding the disregard for human life was extreme [1].

Earlier in the legal process, Katsura expressed uncertainty regarding the outcome of the case. He said he did not know if the crime would be established [5].

The accident resulted in 26 people dying or going missing.

This sentencing reflects a judicial effort to impose stricter liability on tourism operators in Japan's high-risk coastal regions. By focusing on the failure to heed weather forecasts, the court is signaling that operational convenience cannot supersede mandatory safety protocols, potentially leading to more rigorous oversight of tourist vessel certifications and weather-monitoring mandates in Hokkaido.