The Accident — What Happened on April 23, 2022
On the morning of April 23, 2022, the sightseeing boat KAZU I, operated by Shiretoko Pleasure Cruise Ltd., sank off the coast of the Shiretoko Peninsula in Shari Town, Hokkaido. All 26 people on board — 24 passengers and 2 crew members — were killed or remain missing, making it one of Japan's worst maritime disasters in recent history.
Timeline of the Disaster
| Date & Time | Event |
|---|---|
| April 23, 2022, early morning | Strong wind and wave advisories issued; local fishing boats stayed in port |
| April 23, 10:00 AM | KAZU I departed Utoro fishing port (24 passengers, 2 crew) |
| April 23, ~1:00 PM | KAZU I radioed emergency: "Taking on water, engines not working" |
| April 23, 1:26 PM | Final transmission: "Bow is sinking, 30-degree tilt" |
| April 23, afternoon onward | Japan Coast Guard launched large-scale search; vessel not found |
| May 2022 onward | Vessel discovered on seabed at approx. 120m depth and raised |
| May 2022 onward | Remains of passengers recovered; some still missing |
| February 2024 | President Seiichi Katsurida indicted for gross negligence causing death |
| April 16, 2026 | Prosecution seeks 5 years imprisonment |
| June 17, 2026 | Verdict scheduled |
The accident was caused by a combination of safety management failures: departure in severe weather (strong winds, high waves), poor vessel maintenance (water ingress through hatches), and inadequate communication equipment (the satellite phone was broken).
The Criminal Trial
The Indictment
In February 2024, the Sapporo District Public Prosecutors Office indicted Seiichi Katsurida, president of Shiretoko Pleasure Cruise Ltd., for gross negligence causing death (Article 211 of the Penal Code).
Key points of the prosecution's case:
- Katsurida was the designated safety operations manager with a duty to make departure decisions under the safety management regulations
- Strong wind and wave advisories were in effect; local fishing boats did not go out
- Despite this, Katsurida did not cancel the departure
- He also neglected vessel maintenance and communication equipment failures
The Defense's Position
The defense argues for acquittal based on the following:
- Katsurida was not on the vessel on the day of the accident
- The departure decision was within the captain's discretion
- Weather conditions at the time of departure were not clearly dangerous
April 16, 2026 — Prosecution's Sentencing Request
On April 16, 2026, prosecutors sought 5 years imprisonment for Katsurida. In closing arguments, the prosecution stated:
> "The defendant bore ultimate responsibility for passenger safety as the operations manager. His failure to stop the departure despite awareness of severe weather forecasts constitutes gross negligence."
Free Tool Related to This Article
Statute of Limitations Checker
Try our free simulator related to this topic.
Try for free →Gross Negligence Causing Death Under Japanese Law
The Statute
Article 211 of the Penal Code (Causing Death or Injury Through Negligence in the Course of Business):
> A person who fails to exercise the necessary care required by their business, thereby causing the death or injury of another person, shall be punished by imprisonment for not more than 5 years or a fine of not more than ¥1,000,000.
Comparison with Past Major Cases
| Case | Year | Deaths | Defendant | Sentence Sought | Verdict |
|---|---|---|---|---|---|
| JR Fukuchiyama Line Derailment | 2005 | 107 | 3 former JR West presidents | — | Acquitted (no foreseeability) |
| Sasago Tunnel Ceiling Collapse | 2012 | 9 | NEXCO subsidiary president et al. | 4 years | 3 years (suspended 5 years) |
| Karuizawa Ski Bus Crash | 2016 | 15 | Bus company president | 5 years | 4 years 6 months (actual imprisonment) |
| Shiretoko Boat Disaster | 2022 | 26 | Cruise company president | 5 years | Verdict: June 17, 2026 |
The Karuizawa ski bus case resulted in actual imprisonment for the company president, while the JR Fukuchiyama case ended in acquittal for top executives. The degree of management involvement in safety operations has been the decisive factor in sentencing.
The Legal Issue of "Omission-Based Negligence"
The central legal question in this case is whether Katsurida can be held criminally liable despite not being on the vessel that day.
Requirements for Criminal Liability by Omission
Under Japanese criminal law, liability for an omission (failure to act) requires:
- Duty to act — arising from law, contract, or prior conduct
- Ability to act — it was physically possible to fulfill the duty
- Avoidability of the result — fulfilling the duty would have prevented the outcome
- Causation — a causal link between the omission and the result
Application to This Case
| Requirement | Prosecution's Argument | Defense's Counter |
|---|---|---|
| Duty to act | As safety operations manager, had a regulatory duty to decide on departure | Departure decisions were the captain's authority |
| Ability to act | Could have ordered cancellation with a single phone call | — |
| Avoidability | If the boat had not departed, 26 people would not have died | Weather conditions at departure did not clearly indicate danger |
| Causation | Allowing departure was the direct cause | Other factors (vessel deterioration) also contributed |
Judicial Trends
The Supreme Court of Japan has generally taken a broad view of supervisory negligence. Omission-based negligence is more likely to be recognized when:
- The defendant managed a dangerous operation
- The defendant was aware of or should have been aware of the danger
- Taking preventive measures would have been easy
Management Duty of Safety Care
Obligations Under Criminal Law
The "necessary care required by business" under Article 211 is determined by the nature of the business. Managers of passenger transport businesses are subject to duties including:
- Establishing and complying with safety management regulations (Maritime Transportation Act)
- Collecting weather and sea condition information and making departure decisions
- Conducting proper vessel maintenance and inspections
- Training crew members
- Maintaining communication equipment
Maritime Transportation Act Requirements
Operators of passenger transport services must establish safety management regulations (Article 10-3 of the Maritime Transportation Act). Post-accident investigations revealed numerous deficiencies in Shiretoko Pleasure Cruise's safety management system.
Civil Damages Claims by Bereaved Families
Status of Civil Litigation
Separately from the criminal trial, bereaved families have filed civil damages claims against both the company and Katsurida personally.
| Legal Basis | Description |
|---|---|
| Civil Code Art. 709 (Tort) | A person who intentionally or negligently infringes another's rights must compensate for damages |
| Civil Code Art. 715 (Employer Liability) | An employer is liable for damages caused by employees in the course of business |
| Breach of Passenger Transport Contract | Breach of the contractual duty to transport passengers safely |
Government Accountability
Some families have raised questions about the government's (Ministry of Land, Infrastructure, Transport and Tourism) supervisory responsibility. It has been pointed out that safety management deficiencies at Shiretoko Pleasure Cruise were known before the accident, yet adequate supervision was not provided.
Whether government liability under the State Redress Act (Article 1) can be established is another important legal issue going forward.
Verdict Outlook and Social Impact
Expected Verdict
Regarding the verdict scheduled for June 17, 2026:
If convicted: Based on precedent from similar cases (Karuizawa ski bus crash: 4 years 6 months actual imprisonment), a sentence of 3 to 5 years actual imprisonment is expected. The severity of 26 deaths and the extensive breach of safety management duties are likely to be significant factors.
If acquitted: This would only occur if the defense's "captain's discretion" argument is accepted and the president's personal foreseeability is denied. While unlikely, the JR Fukuchiyama Line precedent shows this cannot be entirely ruled out.
Social Impact
This verdict will have significant implications for:
- Scope of management criminal liability — establishing how far criminal responsibility extends for executives not present at the scene
- Safety standards improvement — driving review of safety standards across the passenger transport industry
- Victim compensation — the criminal verdict will influence pending civil cases
- Administrative oversight reform — catalyzing review of MLIT's supervisory framework
Lessons for Business Owners
The Shiretoko boat disaster offers critical lessons for all business operators, not just those in passenger transport.
1. Safety Management Is the CEO's Ultimate Responsibility
Safety management regulations and occupational safety systems must never become mere formalities. Executives cannot avoid liability by saying "I left it to the field staff."
2. "Safety Over Profit" Decision-Making
On the day of the disaster, canceling the trip would have meant lost revenue. However, prioritizing profit over safety can lead to criminal prosecution.
3. Documentation and Systems
Maintaining the following systems with proper records is essential:
- Safety management regulations with periodic reviews
- Clear departure criteria based on weather conditions
- Equipment inspection records
- Employee safety training records
- Incident reporting and analysis systems
4. Insurance and Compensation Preparedness
Damages for 26 deaths or disappearances will be enormous. Small and medium-sized enterprises with limited financial resources especially need adequate insurance coverage.
Summary
The Shiretoko sightseeing boat disaster took 26 lives. The verdict on June 17, 2026, will address the critical legal question of whether an executive's failure to act — despite not being at the scene — constitutes criminal negligence.
Three key takeaways:
- Prosecution seeks 5 years imprisonment — the statutory maximum for gross negligence causing death, reflecting the severity of 26 victims
- Omission-based negligence is the central issue — the duty to act as operations manager, awareness of severe weather, and the ease of canceling with a single phone call are key
- Management safety accountability is under scrutiny — all business operators should urgently review their safety management systems
If you have been affected by this incident or have concerns about your organization's safety management framework, consult an attorney as soon as possible.
