What is a key aspect of the role of juries in trials?

The role of juries in trials is fundamentally to determine facts and render verdicts based on the evidence presented during the trial. This process involves carefully listening to testimonies, examining physical evidence, and considering the arguments made by both the prosecution and defense. The jury's primary responsibility is to evaluate the evidence and reach a conclusion about the guilt or innocence of the defendant in criminal cases, or liability in civil cases.

By doing this, juries help ensure that the verdict is based on a collective assessment of the evidence, reflecting a broad perspective rather than that of a single individual. This is essential in upholding the principle of a fair trial, as juries represent a cross-section of the community, providing a check against individual biases.

The other options describe functions not assigned to juries. They do not determine the legality of laws or propose amendments, which falls within the purview of legislative bodies, nor do they assess the credibility of witnesses directly; rather, they weigh the evidence presented regarding witness credibility as part of their overall fact-finding role.