Which case mandates that custodial interrogations be recorded if practical?

The correct option is tied to Minnesota v. Scales, which established the requirement that custodial interrogations should be recorded when practical to ensure the reliability and integrity of the confession or statements made by the suspect. This legal precedent is significant because it aims to protect the rights of individuals during the interrogation process by providing an objective record of what occurred. Recording interrogations can help to reduce issues related to disputes about coercion or the voluntariness of statements, ensuring that law enforcement practices align with constitutional safeguards.

Minnesota v. Scales specifically highlighted the need for transparency in law enforcement procedures, thereby reinforcing the necessity for recordings as a means of oversight and accountability. This decision underscores the importance of not only protecting individuals' rights but also improving police practices, creating a more trustworthy justice system.