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CompStat is a term that refers to comparative statistics or computer statistics. It is the systematic collection, analysis, and mapping of crime data and police performance measures toward addressing crime, while also holding police managers accountable for their own and their officers’ performance as measured by these data.

CompStat originated in 1994 at the New York City Police Department (NYPD) as a multilayered approach to reducing crime, improving quality of life, and establishing better accountability for personnel and resource management. A principal aim of CompStat was to engage NYPD’s precinct captains in employing problem-solving strategies and tactics to address neighborhood problems in their areas of command. As such, it represents a departure from conventional policing, which is characterized by organizational inflexibility, central authority, and limited discretion. Based on key features of community policing, problem solving, and broken windows theory, CompStat places the accountability for managing crime problems directly on the shoulders of a police organization’s mid-level managers (generally captains or commanders, depending on the agency’s size).

While critics argue the NYPD approach may not suit all agencies, CompStat-like programs were quickly adopted by agencies nationwide and abroad as a result of the NYPD’s highly publicized successes. This entry discusses the origins, expansion, premises and purposes, evaluation, current status, and future of this major tool for use in community policing and problem solving.

Origins

In 1994, William Bratton was appointed as the police commissioner for the NYPD and with the assistance of Deputy Chief Commissioner Jack Maple implemented CompStat. Four NYPD detectives are credited with creating the term as they were entering data onto a 5.25-inch floppy disk using a small business software package named SmartWare. The outdated computer operating system (known as DOS, for disk operating system) they were using restricted the officers to eight characters to name the file. One officer yelled out “CompStat,” and that in essence was the term’s humble beginnings. The implementation of CompStat as an organizational management tool and accountability system is credited to Jack Maple. He was a lieutenant in the New York transit authority police department when Bratton appointed him to deputy commissioner in 1994. Maple is credited by many as the architect of the department’s CompStat program, which placed accountability on precinct commanders to use crime statistics to examine problems at rigorous weekly meetings with the department’s top officials.

Bratton’s policing approach differed in many ways from other police leaders who under community policing models were decentralizing decision-making authority to patrol officers. Bratton identified precinct commanders as being better suited for the task of decision making because young officers were inexperienced at addressing many of the serious issues facing New York City. Prior to his appointment as head of the NYPD, Bratton was head of the city’s subway system, which under his leadership showed significant reductions in crime. That success led to his appointment as head of the NYPD by then-Mayor Rudolph Giuliani, who wanted the same reduction in crime throughout the city.

Overcoming Conventional Crime Fighting Methods

Prior to CompStat, NYPD generally had a three- to six-month delay in reporting crime statistics, which made it nearly impossible to provide officers with meaningful or timely analysis. NYPD’s precincts had the ability to perform crime analysis but did not do so systematically. Precinct captains simply did not consider the analysis of crime data or crime reduction as their principal responsibility. This was traditionally common among police departments across the nation, where reactive, incident-driven patrol was seen as more important and detective and patrol bureaus rarely communicated or collaborated.

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