Shanghai man sentenced 3 months for drunk driving with ADAS engaged

Sentence handed down in first case involving drunk driving with ADAS

On August 13, the Jing'an District People's Court in Shanghai issued a first-instance ruling, sentencing defendant Li Mou to three months of criminal detention and a fine of approx. $1,250 (9,000 RMB) for dangerous driving.

The incident occurred in the early hours of April 17, 2026. Li had been drinking before getting behind the wheel and activating his vehicle's driver-assistance system. He drove roughly 14 km along Shanghai's Middle Ring Road before his car scraped against a taxi near the Wanrong Road exit ramp.

About 150 meters ahead, police had set up a sobriety checkpoint. Rather than stopping, Li accelerated through the barrier and was intercepted shortly afterward. A breath test registered 188 mg of alcohol per 100 ml of breath. A subsequent blood draw showed a blood-alcohol concentration of 201 mg/100 ml — more than double China's legal drunk-driving threshold of 80 mg/100 ml.

Prosecution: ADAS does not absolve driver responsibility

On April 20, traffic authorities revoked Li's driver's license. In July, police transferred the case to prosecutors on suspicion of dangerous driving. The Jing'an District People's Procuratorate charged Li, with prosecutor Xie Lijuan emphasizing that assistive driving remains an aid, not a substitute for human operation.

Assistive driving assists the driver; it does not drive for them. Once activated, the driver is still legally responsible for operating the vehicle. Technological convenience is not a shield against criminal liability, and intelligent driving features cannot exempt or mitigate a driver's legal obligations.

Li's case marks one of the first known court judgments in China involving a driver who relied on a level-2 driver-assistance system while intoxicated. Chinese traffic law classifies blood-alcohol levels at or above 80 mg/100 ml as drunk driving, carrying mandatory criminal penalties, license revocation, and a five-year ban on requalification.

ADAS warnings grow alongside adoption

The ruling comes as L2-level driver-assistance systems continue to spread across the Chinese market. Industry data shows that the first half of 2026 saw L2 penetration reach 77.5 percent in Beijing, above the national average of 70.5 percent. Automakers including BYD and SAIC Volkswagen have pointed to their systems' compliance with emerging national standards.

Legal experts and regulators have repeatedly stressed that current production assistive-driving features — including those from Huawei, XPENG, Li Auto and other Chinese brands — require the driver to remain attentive and ready to intervene at all times. Using such systems while impaired violates both criminal law and the terms of every manufacturer's owner manual.