What is the definition of direct evidence?

Direct evidence is defined as evidence that directly proves a fact without the need for inference or assumption. This type of evidence provides an immediate connection to the truth of a particular fact, such as eyewitness testimony that observes a crime as it occurs or tangible proof like a video recording of the event.

This is contrasted with other forms of evidence that may require interpretation or assumptions to suggest a conclusion. Options focusing on witness interpretation or statements made by expert witnesses imply the necessity for additional reasoning or context to establish a fact, making them indirect forms of evidence. Additionally, while physical evidence collected at a crime scene can be compelling, it does not always constitute direct evidence unless it directly corroborates the fact in question without further inference. Thus, option B distinctly captures the essence of direct evidence by emphasizing its straightforward nature in proving a fact.