In the year 2006, how many times did police officers in the United States use deadly force? 1 During that same year, how many times did police officers use their batons or chemical spray during encounters with people in any given community? How many high-speed police pursuits ended in collisions? How many vehicle stops last year in any given community led to vehicle searches, and what was the racial composition of those searched as compared with those stopped? All of these questions have the same answer: We do not know. Despite that it is now common practice for American police departments to maintain escalation of force and deadly force policies, as well as policies and guidelines crafted to regulate other forms of coercive behavior, departments typically are not required to collect or distribute data on coercive processes (e.g., specialized deployments) and outcomes (e.g., use of force, deadly force, or stop and frisk). Indeed, although policing during the second half of the twentieth century developed into a highly bureaucratic public enterprise, the increased bureaucratization of police departments seems to have occurred in the absence of concomitant increases in the ability of the public to audit them.This essay argues that all police departments should adopt as a collective professional standard the practices of (1) collecting comprehensive data on all coercive activities, including disciplinary actions, 2 and (2) making those data available with minimal filtering and justification to members of the polity. Although it may seem that this recommendation is simply a call for additional research on police coercion, it is indeed a public policy recommendation based-perhaps indirectly-on evidence. The following sections describe the general unavailability of police data, as well as the reasons why these data should be collected and made available to the public. To support the recommendations, the essay then provides, as evidence, research findings from studies conducted on canine deployments (i.e., a coercive process) and deadly force (i.e., a coercive outcome).