Trade-Offs in Deploying Legal AI: Insights from a Public Opinion Study to Guide AI Risk Management

Abstract: Generative AI tools are increasingly used for legal tasks, including legal research, drafting documents, and even for legal decision-making. As for other purposes, the use of GenAI in the legal domain comes with various risks and benefits that needs to be properly managed to ensure implementation in a way that serves public values and protect human rights. While the EU mandates risk assessment and audits before market introduction for some use cases (e.g., use by judges for administration of justice) other use cases do not fall under the AI Acts' high-risk classifications (e.g., use by citizens for legal consultation or drafting documents). Further, current risk management practices prioritize expert judgment on risk factor identification and prioritization without a corresponding legal requirement to consult with affected communities. Seeing the societal importance of the legal sector and the potentially transformative impact of GenAI in this sector, the acceptability and legitimacy of GenAI solutions also depends on public perceptions and a better understanding of the risks and benefits citizens associated with the use of AI in the legal sector. As a response, this papers presents data from a representative sample of German citizens (n=488) outlining citizens' perspectives on the use of GenAI for two legal tasks: legal consultation and legal mediation. Concretely, we i) systematically map risks and benefit factors for both legal tasks, ii) describe predictors that influence risk acceptance of the use of GenAI for those tasks, and iii) highlight emerging trade-off themes that citizens engage in when weighing up risk acceptability. Our results provides an empirical overview of citizens' concerns regarding risk management of GenAI for the legal domain, foregrounding critical themes that complement current risk assessment procedures.