What type of evidence can aid investigators but is not an object?

Witness accounts serve as a vital form of evidence that provides insight into a situation or incident from the perspective of individuals who experienced it. These accounts can offer crucial context, details about events, behaviors, and other actions that may not be captured through physical evidence or documentation. Witnesses can relay their observations, feelings, and interpretations, which can help investigators formulate theories, identify suspects, or corroborate other pieces of evidence. This type of evidence is particularly important in many investigations, as it can guide law enforcement in understanding the timeline of events and the relationships between involved parties.

While error reports, digital data, and non-physical leads can also provide useful information in an investigation, they do not encompass the personal experiences and narratives that witness accounts provide. This distinction is critical, as the subjective nature of witness testimony can add depth and dimension to the understanding of a case.