With a population surpassing 1.4 billion, China operates one of the world's busiest judicial systems, and artificial intelligence is playing an increasingly vital role in shaping its future.

In 2023, Shenzhen, Guangdong province, became a trailblazer in judicial innovation with the introduction of an AI-assisted trial mechanism designed to streamline key judicial processes. The system is deployed across four core stages — case filing, document review, court hearings and document drafting — while also optimizing 85 additional workflows.

The AI-powered system has drastically reduced document preparation time from an hour to under five minutes. It follows templates issued by China's Supreme People's Court, offers automatic proofreading, and ensures accurate and standardized legal documentation.

Shenzhen, a bustling tech hub with a population of 17 million and a GDP of $472.95 billion in 2023, is home to a two-tiered court system with 1,173 judges. These courts handle over 700,000 cases annually, with each judge averaging nearly 600 cases per year. By automating routine tasks, the AI system has alleviated the burden on court personnel and boosted efficiency.

Following the system's introduction in June, Shenzhen's courts saw a 31 percent increase in civil and commercial case resolutions between July and September, processing 87,000 cases in three months. Judges in these categories resolved 49 cases on average per month, up from 33 the previous year, a 48.5 percent increase.

A standout feature of the system is its ability to generate AI-assisted input during trials. Integrating with the SPC's comprehensive legal database, it analyzes case facts, legal matters and key issues, generates judgment reasoning and retrieves relevant precedents. The system can even provide real-time analysis of statements made during trials, helping judges identify inconsistencies or ambiguities.

Senior Judge Fu Luqi praised the AI system for its ability to quickly highlight critical issues. In a recent case, the system identified discrepancies in loan agreements, prompting further investigation.

"The AI's ability to identify key issues, verify facts and prompt deeper inquiry expedited the process and helped resolve a longstanding dispute in a single hearing," she told Xinhua.

The AI system has already been used in 95 percent of Shenzhen's civil, commercial and administrative cases, significantly increasing judicial productivity and efficiency.

Recognizing the potential of AI-driven reform, the SPC outlined plans in 2022 to establish a nationwide AI system by 2025, with a comprehensive framework for AI use in the judicial system by 2030. These advancements aim to reduce administrative burdens, enhance judicial integrity, and improve the transparency and fairness of the legal process.

AI-assisted systems are also proving effective in more specialized areas such as intellectual property disputes. In Keqiao district, a textile industry hub in Shaoxing, Zhejiang province, courts have implemented an AI system for copyright disputes over textile patterns.

Judge Zhang Qin noted that the system, which uses image tracing and innovation comparison techniques, has helped clarify ownership and originality in visual works. The system now analyzes over 103,000 registered artworks to assist judges in making fair rulings.

While the potential of AI in the judicial system is vast, the integration of such technology has sparked mixed reactions. Some legal professionals welcome the efficiency AI brings, while others question its lack of accountability and empathy.

A lawyer surnamed Ren expressed concerns about the absence of human judgment in AI-assisted trials, stating, "Human judges can consider broader social and moral implications, whereas AI systems may be too mechanical, overlooking the nuances and empathy needed in some cases."

Zhao Juhua, president of the Shenzhen Intermediate People's Court, emphasized that the AI system is a tool to support, not replacement for human judgment.

"The AI system aids the judicial process but does not take away judicial responsibility," Zhao said. "It ensures traceability and accountability throughout the process."

Despite concerns about AI's limitations, experts agree that its role in the judicial system will continue to expand. Gao Wen, an academician at the Chinese Academy of Engineering, stressed the need to enhance the country's computing infrastructure to support the growing demands of AI in law, especially as the system scales nationwide.

While Shenzhen's AI-assisted system can manage 700,000 cases annually, scaling it for diverse judicial scenarios will require continued advancements in both computational resources and model training.

The integration of AI in China's legal system represents a groundbreaking shift in the way justice is administered with potential benefits for efficiency and fairness, but there are also challenges that need to be addressed as the technology evolves.