Sebastián Vera Briones
This commentary analyzes the judgment issued on February 2, 2026, by the Supreme Court in case No. 30,303-2025, for the purpose of examining the arguments concerning the assessment of expert evidence in civil matters from a theoretical perspective on the legal reasoning relevant to that issue. Building on those theoretical tools, it argues that sound criticism should be understood as a discretionary system of judicial evaluation and, consequently, as one that must be rationally reasoned, which does not relieve the court of the obligation to make explicit those reasons regarding the relevance of such reports, especially when they affect the dispute at hand, a requirement that is not satisfied in the judgment under review.