True or False: The suspect or witness must sign their name to their written statement.

For a written statement from a suspect or witness to be considered valid and credible, it is generally required that they sign their name to it. The signature serves as an affirmation that the individual has read the statement, agrees with its contents, and asserts that they are providing the information voluntarily and truthfully. This practice helps to establish the authenticity of the statement and can be vital should the matter go to trial or require further legal consideration.

In many jurisdictions, a signed statement may also enhance the weight of the evidence presented, as it demonstrates the declarant's acknowledgment of responsibility for the accuracy of the information provided. Furthermore, signatures on legal documents are significant in affirming that the parties involved understand and accept the implications of what they are stating. This is especially important in formal investigative procedures where the reliability of evidence is critical.

The requirement for a signature is an established practice in legal procedures, although specific rules can vary based on jurisdiction and the nature of the investigation. Nonetheless, the act of signing reinforces the integrity and accountability of the process involved in gathering witness statements or suspect confessions.