Nemo judex in causa sua

The Latin legal principle “Nemo judex in causa sua” means that no one should be a judge in their own case. This principle is fundamental in many legal systems, such as civil and common law systems. It emphasizes the importance of impartiality and fairness in legal proceedings.

The principle suggests that a person with a direct interest in a legal matter should not have the power to make decisions or judgments about that matter. To ensure that legal proceedings are conducted fairly and impartially, it is crucial to avoid conflicts of interest. In practice, this principle may lead to the disqualification of judges or decision-makers who have a personal interest in the outcome of a case. Alternatively, they may recuse themselves from such cases to maintain the integrity of the legal process.