A ______________ is a legal narrative description of events related to a crime, including the participants and details.

The correct choice describes a "statement" as a legal narrative that recounts events surrounding a crime. A statement is typically made by a witness or participant in the events and serves as an official record of their perspective and observations. This kind of documentation is crucial in investigations, as it provides law enforcement and the judicial system with firsthand accounts that can help establish timelines, identify suspects, and clarify the details surrounding the incident.

The other options serve different purposes in legal contexts. An affidavit is a sworn written statement, often used to present evidence or facts under oath, which may not cover a broader narrative than the individual's immediate knowledge or experience. A report often includes a summary or analysis of findings by law enforcement or investigators rather than a first-person narrative. Testimony refers specifically to the evidence given by a witness under oath in court, which may or may not be a complete narrative but is focused on verbal account during judicial proceedings. Thus, while all options relate to documentation in legal scenarios, the term "statement" most accurately fits the description provided in the question.