By Hunter M. Boehme, Scott M. Mourtgos

On March 1, 2022, correspondence from the Los Angeles Police Department (LAPD) headquarters stated that officers can no longer use minor infractions (e.g., equipment violations) as a pretextual reason to further investigate drivers for criminal behavior. If LAPD officers are to execute a discretionary stop, they must activate their body-worn cameras and reasonably articulate to the civilian why they are being investigated. The intent is to reduce racial/ethnic disparities in stops and build trust of the police within the community. Critics of the policy argue that elevated crime rates will result due to the crime suppression effect of such stops. This study examines racial differences in stops before and after the policy change, as well as whether Part 1 violent and property crimes increased. Descriptive findings show that while the counts of stops, arrests, and contraband seizures during stops decreased, the percentage of non-White civilians stopped decreased only minimally following the intervention. Results from using Bayesian synthetic control methods indicate an increase in both violent and property crimes post-intervention compared with the synthetic counterfactual. The increase in violent crimes has a low probability of being different from the counterfactual, whereas the increase in property crimes has a high probability, suggesting that the intervention led to a real change in property crimes compared with what would have been expected under the counterfactual.

Policy Implications: This study provides preliminary evidence that emerging policies intended to restrict discretionary stops may not have the intended effect on racial disparities in police traffic stops. Instead, agencies passing similar policies may expect to see the potential unintended consequence of a spike in jurisdictional property crimes. We argue that such types of stops across a jurisdiction may have a general deterrent effect on more common and calculative crimes such as property crimes. To combat violent crimes, agencies should consider focusing discretionary stops in known hot spots. Further, our findings offer implications for research on the effects of de-policing on crime. Police agencies should monitor potential unintended impacts of these policies if enacted and be prepared to deal with such consequences.

Criminology & Public Policy Volume 23, Issue 3: Special Issue: Policing Practice and Policy Aug 2024 Pages 515-799

By Simon A. Cole and Juan R. Sandoval

Police misconduct represents a profound societal issue with far-reaching consequences. Its detrimental effects encompass the discriminatory application of laws, harassment, physical violence and murder, corruption, wrongful arrests and wrongful convictions.1 These concerns are particularly pressing for underserved communities of color, where heightened levels of police contact and incarceration have effectively eroded the legitimacy of law enforcement.2 While police misconduct has been a long-standing concern, it has garnered heightened attention in recent years, primarily fueled by extensive media coverage of egregious acts of police violence, such as the killings of Michael Brown, George Floyd, and Tyre Nichols. An important recent concern about police violence has been the problem of “repeat offenders”— instances of police misconduct are not isolated events but rather involve particular officers who engage in misconduct repeatedly, with impunity. Discussion of this issue has focused on two key aspects: first, the existence of officers with extensive histories of misconduct that are often concealed from criminal defendants, judges, reporters, and the public; and second, the phenomenon of the “wandering officer” who commits misconduct in a particular department, is fired or leaves that police force, and then is hired by another police department in a different jurisdiction, where stakeholders are unaware of that officer’s history.3 The first issue came to light when it was revealed that in certain jurisdictions, including Los Angeles County and Baltimore, prosecutors maintained undisclosed “do not call” lists of police officers who should not be presented as witnesses in criminal trials due to their known histories of misconduct, perjury, or both. 4 The second problem came to light through the exposure of several infamous cases in which police officers effectively erased records of serious misconduct, secured  more widely accessible to stakeholders. This type of information has historically enjoyed legal protection, making it challenging for the public to access in numerous states.6 Notable disclosure efforts include the Invisible Institute’s publication of Chicago police misconduct data on a dedicated website, 7 and the New York Legal Aid Society's creation of a mobile device “app” designed for recording and accessing public information about individual police officers, which subsequently gained national traction through the National Association of Criminal Defense Lawyers.8 Finally, there have been persistent lobbying efforts aimed at persuading legislators to increase the transparency of information related to police misconduct for the general public. In California, these lobbying efforts have succeeded. In 2019, the legislature enacted new laws transforming the state from one that “without question, had the worst laws governing the disclosure of adjudicated findings of police misconduct” to one with “some of the strongest transparency laws” in the U.S.9 A consortium of stakeholders, including academic institutions, civil rights organizations, journalists, public defenders, and innocence organizations (including the National Registry of Exonerations), has formed the California Law Enforcement Accountability Network (CLEAN) to coordinate efforts of gathering, archiving, analyzing, and making public this newly accessible data.10 This report seeks to support these initiatives by exploring possible uses of information from the National Registry of Exonerations. This online publicly accessible archive contains data and narratives about all known exoneration cases in United States history. Police misconduct is important to the Registry because it is widely recognized as one of the key contributors to wrongful convictions in the United States. Police misconduct contributed to 43% of the wrongful convictions that resulted in exonerations since 1989.11 In addition, the Registry tracks clusters of exonerations through its Groups Registry. This includes exonerations centered around notorious rogue officers, such as former sheriff's deputy Tom Coleman in Tulia, Texas, former Sergeant Ronald Watts in Chicago, and Rafael Perez, the former Los Angeles Police detective at the heart of the Rampart scandal.   

 Ann Arbor: National Registry of Exonerations, 2023. 13p.

By Special Advisor Board of Police Commissioners on Civil Disorder in Los Angeles.

Motion: “In light of the events that have consumed this City since the verdict in the criminal prosecution of the four officers involved in the arrest of Rodney King, the Police Commission will undertake an investigation to examine the Police Department's preparations in the event of a civil disturbance and to understand what worked and what did not work In the days following April 29, 1992, with a view toward improving Departmental systems intended for that purpose.”

Board of Police Commissioners on Civil Disorder in Los Angeles. 1992. 227p.

By James Lasley

Once considered among the most respected police departments in the world, the LAPD suffered a devastating fall from grace following the 1991 police officer beating of Rodney King and the Los Angeles riots stemming from the officers’ acquittal in 1992. Unique to the literature of policing, management, and policy studies, <STRONG>Los Angeles Police Department Meltdown: The Fall of the Professional-Reform Model of Policing presents what can be considered the first and only existing research document truly explaining the reasons behind the LAPD’s demise. The book reveals a special inside study performed by the author under the exclusive authority of LAPD Chief of Police Daryl Gates to investigate why the department had begun to disintegrate following the Rodney King incident, and how, if possible, it could be salvaged. The findings presented are based on first-hand written accounts of LAPD officer informants who describe their observations of the department’s meltdown as it occurred. These accounts explain why the crime-fighting enforcement style of the once highly regarded Professional-Reform Model of policing (coined at the LAPD) was abandoned in police departments across the nation in favor of the less aggressive community-based policing model.   Lost for some 20 years under mysterious circumstances after collection and storage at the LAPD, these officer informant materials were recently retrieved and made available for analysis. They are presented in their entirety in this book. In every respect, this work is the final word on why and how the LAPD—a police organization emulated throughout the world—ultimately self-destructed after 41 years of serving and protecting the City of Angels.

Boca Raton; London; New York: CRC Press, 2012. 294p