This bill aims to enhance public safety by promoting evidence-based interview practices in law enforcement, specifically by implementing rapport-based, noncoercive techniques instead of deceptive tactics during interrogations. The legislature recognizes that these methods lead to more accurate and reliable information from suspects and witnesses, thereby fostering public trust and cooperation. To support this initiative, the bill mandates the development and implementation of training programs for law enforcement personnel on these techniques, which are to be made available at no cost.

Key provisions of the bill include a presumption of inadmissibility for statements obtained through deception during interrogations, effective from December 31, 2026, unless the prosecution can prove the statement was voluntary. Additionally, the bill outlines specific definitions related to deception, interrogation, and law enforcement officers, and establishes a new section in chapter 43.101 RCW that requires the commission to contract with experts to create and periodically update training on evidence-based interrogation techniques. The training will cover various methods, including the PEACE method and trauma-informed interviews, and is set to be offered by July 1, 2026.