What is the primary purpose of witness testimony in court?

The primary purpose of witness testimony in court is to serve as evidence. Witnesses provide first-hand accounts or expert opinions that help establish the facts surrounding a case. Their testimonies are intended to contribute to the body of evidence that supports either the prosecution or defense's arguments, allowing the judge or jury to make informed decisions based on the evidence presented. This role is crucial in the legal process, as it provides a foundation for the case and can significantly impact the outcome, depending on the credibility and reliability of the witness.

While witness testimony might be viewed as opinion in some contexts, particularly with expert witnesses, the actual function in court is to present factual information that can either corroborate or dispute claims made by the parties involved. It is not primarily to influence juror decisions or to question the defendant directly; rather, it's centered on sharing information that has relevance to the case at hand.