According to the original recommendation, this called for ACPO to devise Codes of Practice for reviews of crime investigations to ensure openness and thoroughness, and to consider external police service reviews. According to the available evidence, ACPO was replaced by the National Police Chiefs' Council (NPCC) in 2015, making the original recommendation's target body obsolete, and no specific published evidence has been identified confirming the creation of such codes by ACPO or its successor, or the implementation of external reviews as a consistent practice.