October 28, 2025

In a futuristic twist reminiscent of a science fiction novel, the University of North Carolina School of Law conducted a mock trial with a jury composed entirely of AI chatbots last week. This experiment, involving popular AI programs like ChatGPT, Grok, and Claude, aimed to explore the potential of replacing human jurors with algorithms. The test case centered on a fictional robbery charge against Henry Justus, a high school senior, with AI bots serving as the decision-makers.
The idea of using AI in judicial processes has been touted as a solution to human bias and a cost-saving measure. However, the trial raised substantial concerns about the viability of such technology in sensitive legal contexts. Professor Eric Muller expressed doubts about the ability of AI to truly understand human nuances and the ethical implications of replacing human empathy with algorithmic calculations.
During the trial, the AI jurors processed a real-time transcript of the proceedings, deliberating on the case in a manner that highlighted both the capabilities and limitations of current AI technology. While the AI could efficiently analyze factual inconsistencies, it lacked the ability to perceive the subtleties of human behavior, such as assessing the credibility of a witness based on their demeanor.
Critics argue that the reliance on AI could lead to a new form of bias—algorithmic bias—where the inherent prejudices of AI developers and their datasets could influence outcomes. Moreover, the involvement of AI in generating biased narratives, as seen with one of the AI jurors, Grok, which has been adjusted to show explicit biases, adds another layer of complexity to the debate.
Despite these challenges, proponents of AI in legal settings suggest that there are lower-risk areas where AI could be beneficial. For instance, in civil litigation, where the stakes are not as high as criminal cases, AI could help manage resources more efficiently. Additionally, AI could assist human jurors in navigating extensive evidence and transcripts more effectively, potentially improving understanding without replacing the human element.
The experiment at UNC School of Law serves as a critical reminder of the need for cautious exploration into the integration of AI in judicial systems. While AI offers promising advancements, its current form is far from ready to replace human judgment in criminal trials. The mock trial concludes with a call for ongoing testing—strictly in simulated environments—to ensure that any future implementations of AI in legal systems are both responsible and ethically sound.