What prepares witnesses to provide reliable testimonies without speculation?

Preparing witnesses to provide reliable testimonies without speculation involves guiding them to utilize their own observations and experiences, rather than encouraging them to form opinions or engage in conjecture about the case. The concept of "best judgment" refers to the ability of witnesses to draw upon their personal experiences and knowledge to present facts clearly, accurately, and truthfully.

By focusing on what witnesses actually know and have witnessed, as opposed to what they think or assume about the case, the testimony remains grounded in factual information. This approach helps eliminate ambiguity and enhances the reliability of the witness's statements, as they are not swayed by external influences or subjective interpretations that could lead to speculation. Thus, promoting the idea of “best judgment” is a fundamental practice in witness preparation for delivering credible and objective testimonies.