Reiwa 6 (U) No. 68 Fatal Negligent Driving Case

On April 12, 2024, in Utsunomiya City, Tochigi Prefecture, Japan, a 45-year-old truck driver, Kenji Yamamoto, fell asleep at the wheel due to severe fatigue caused by excessive working hours. His vehicle veered off the road and struck Aiko Suzuki, 40, and her 5-year-old son, Taro, at a pedestrian crossing, killing both instantly. The incident was docketed as Reiwa 6 (U) No. 68. The prosecution charged Yamamoto with negligent driving causing death. During trial, evidence revealed systemic overwork enforced by his employer, sparking debate over whether the case merited a stricter charge of dangerous driving. The court, however, stayed within the negligent driving framework. The case became a focal point for examining the boundaries between individual driver error and corporate responsibility in Japan's logistics sector.

The Utsunomiya District Court convicted Kenji Yamamoto of negligent driving causing death and sentenced him to 3 years in prison without suspension. The court acknowledged the employer's exploitative practices as a mitigating factor but ruled that primary criminal liability rested with the driver. No corporate charges were filed.

The central legal dispute was whether the driver's extreme sleep deprivation and the employer's documented illegal overtime demands elevated the incident from ordinary negligent driving to the more serious offense of dangerous driving causing death, warranting a harsher sentence and potential corporate criminal liability.

The case intensified public scrutiny of Japan's "2024 problem" in logistics, referring to new overtime caps for truck drivers. It amplified calls for stricter regulations on working hours, mandatory fatigue-monitoring systems, and legislative reform to introduce corporate criminal liability for death caused by overwork. The victims' family became prominent advocates for road safety reforms.