Sustaining important police reforms is a major challenge in policing. There is a long history of exciting and important reforms simply fading away after a few years. Important anti-corruption reforms in the New York City Police Department in the early 1970’s, for example, had essentially disappeared by the 1990s when a new corruption scandal erupted.
Read the report on how problem-oriented policing was institutionalized in the Charlotte, North Carolina Police Department: Trent Ikerd and Samuel Walker,
Making Police Reforms Endure: The Keys for Success (Washington, DC: Department of Justice, 2010).
Also read Samuel Walker’s analysis of the history of reforms fading away: institionalizingreforms