What must be included in a narrative statement to ensure its admissibility in court?

In order for a narrative statement to be admissible in court, it is crucial that it has the signatures of both the subject and the investigator. This authentication serves multiple purposes. Firstly, the signatures indicate that both parties agree to the content of the statement, providing a level of reliability and credibility to the testimony. Secondly, the investigator's signature affirms that the statement was taken accurately and truthfully, reflecting the subject's account of events.

The signatures help establish a formal record, which is important in legal contexts where the integrity of documents can significantly impact the outcome of a case. Additionally, having both signatures can also protect against disputes about the content of the statement or claims that it was fabricated later on.

While corrections, witnesses, and detailed analyses of evidence may play roles in the investigative process, they do not directly contribute to the fundamental requirements for the admissibility of a narrative statement in court like the signatures do.