By Vasiliki Georgoulas-Sherry & Hanna Hernandez

This report analyzes COVID-19 impacts on criminal justice data. Specifically, it focuses on the differences amongst adult and juvenile arrests, adult sentencing and juvenile dispositions, adult and juvenile carceral admissions between 2020 and previous years. This type of analysis can help support state and federal policymakers in determining potential next steps in addressing the pandemic’s impact on the criminal justice system – both in the short-term and in the long-term. This report will also help future researchers better understand the anomalies and a more accurate assessment of the pandemic that occurred in the criminal justice datasets during the years impacted. The Washington Statistical Analysis Center (SAC) applied for and received the 2021 State Justice Statistics Grant from Bureau of Justice Statistics (BJS). Among other projects, the SAC sought the grant to evaluate the impact of COVID-19 on criminal justice data. Main conclusions from this report: 1. Overall, counts of arrests in Washington State, regardless of category, showed mixed findings with increased from 2017 to 2018 and then 2019 to 2020; but decreased from 2018 to 2019 and then again 2020 to 2021. From 2020 to 2021, there was an overall 3% decrease in arrests in Washington State. 2. For adult arrests in Washington State, from 2019 to 2020 and then 2020 to 2021, there was an overall 17.8% and 13.9% decrease, respectively. For juvenile arrests, from 2019 to 2020 and then 2020 to 2021, there was an overall 39.1% and 33.2% decrease, respectively. 3. Superior court filings decreased from 16.2% in 2018-2019, to 21.4% in 2019-2020, to 15.7% in 2020-2021. Additionally, felony jail sentences decreased throughout the years, from 2017 to 2021. Furthermore, while the overall average prison sentences also saw a decrease from 2017 to 2021, in 2019 to 2020, murder, sex crimes, robbery, and drug crimes saw rises. 4. Juvenile dispositions showed substantial decreases from 2019 to 2020 and from 2020 to 2021 by 7.3% and by 28.8%, respectively. 5. Adult prison admissions saw a decline in all admissions (new, re-admit, and other) . from 2019 to 2021 6. From 2019 to 2020,DOC juvenile admissions and new admissions increased by 126.9% and 11.7%, respectively. 2020 to 2021 presented with decreases in all juvenile admissions.

Olympia: Washington State Statistical Analysis Center, 2022. 213p.

By Hanna Hernandez, M.A. & Vasiliki Georgoulas-Sherry

This report analyzes COVID-19 impacts on criminal justice data. Specifically, it focuses on reported National Incident-Based Reporting System (NIBRS) offenses and Washington Association of Sheriffs and Police Chiefs (WASPC) arrests and bookings. This type of analysis supports state and federal policymakers to determine the actions needed to address the pandemic’s impact on the criminal justice system. This will also help future researchers define the anomalies that occurred in the criminal justice datasets, specifically the longitudinal studies that include the years impacted by COVID-19. Researchers can provide a more accurate assessment of the impact that the pandemic may have on the criminal justice system and its associated datasets. The Washington Statistical Analysis Center (SAC) applied for and received the 2021 State Justice Statistics Grant from Bureau of Justice Statistics (BJS). Among other projects, the SAC sought the grant to conduct this report to evaluate the impact of COVID-19 on criminal justice data. Main conclusions: 1. There was a decrease in 2018 to 2019 (3.0%) and 2019 to 2020 (9.3%) in NIBRS incidents reported. 2. There was a decrease in 2018 to 2019 (0.5%) and 2019 to 2020 (19.1%) in WASPC arrests. 3. There was a decrease in 2018 to 2019 (24.7%) and 2019 to 2020 (12.4%) in WASPC bookings.

Olympia: Washington State Statistical Analysis Center, 2022. 23p.

By Vasiliki Georgoulas-Sherry. & Hanna Hernandez

The global 2020 coronavirus pandemic has had an unprecedented impact on the operations and actions of local, state, and national governments across all areas of criminal justice. The unique characteristics of this pandemic trend toward short- and long-term consequences as significant changes to criminal justice and legal outcomes. To respond to these impacts, the Washington Statistical Analysis Center (SAC) applied for and received the 2022 State Justice Statistics (SJS) grant from the Bureau of Justice Statistics (BJS). The SAC sought the grant to increase access to statistical data and create new metrics and indicators to enhance the integrated criminal justice database — the Justice Data Warehouse (JDW) — in efforts to strategically and analytically evaluate the pandemic’s impacts in criminal justice. Through this grant, the Washington SAC leveraged and built upon the JDW to expand the data variables by creating COVID-19 metrics and indicators to help assess and account for COVID-19 impacts in the criminal justice and legal system.

Olympia: Washington State Statistical Analysis Center. 2024. 49p.

Edited by Nutmeg Hallett, Richard Whittington, Dirk Richter, Emachi Eneje

This book aims to provide a state-of-the-art overview of the contexts, causes and treatments that relate to the reduction of coercion and the prevention of violence in mental health settings. The objective of this new edition in Open Access is to integrate theoretical explanations, empirical findings and practical solutions on the topic from many countries and diverse professional contexts.

A large proportion of the text is concerned with practical and applied guidance for practitioners and others based on a clear understanding of conceptual and theoretical issues. Significantly enriched by the contributions of lived experience editors and co-authors, this edition brings authentic, new perspectives that deepen its relevance and impact.

There is extensive use of case studies drawn from practice and the media to enliven the discussion. The scope of the book is intended to go beyond a reductionist medical/biological orientation on coercion and violence in mental health by integrating this within broader psychological and social frameworks. It includes new relevant contributions from nursing, psychology, psychiatry and sociology. The language of the book is clear and understandable to a broad audience whilst offering new knowledge for researchers and other specialists.

Cham Springer Nature, 436p.

By Sabine E. M. van Sleeuwen, Wouter Steenbeek, Stijn Ruiter

Objectives: Building on Hägerstrand’s time geography, we expect temporal consistency in individual offending behavior. We hypothesize that repeat offenders commit offenses at similar times of day and week. In addition, we expect stronger temporal consistency for crimes of the same type and for crimes committed within a shorter time span. Method: We use police-recorded crime data on 28,274 repeat offenders who committed 152,180 offenses between 1996 and 2009 in the greater The Hague area in the Netherlands. We use a Monte Carlo permutation procedure to compare the overall level of temporal consistency observed in the data to the temporal consistency that is to be expected given the overall temporal distribution of crime. Results: Repeat offenders show strong temporal consistency: they commit their crimes at more similar hours of day and week than expected. Moreover, the observed temporal consistency patterns are indeed stronger for offenses of the same type of crime and when less time has elapsed between the offenses, especially for offenses committed within a month after the prior offense. Discussion: The results are consistent with offenders having recurring rhythms that shape their temporal crime pattern. These findings might prove valuable for improving predictive policing methods and crime linkage analysis as well as interventions to reduce recidivism.

Journal of Quantitative Criminology (2021) 37:863–889

By Sabine E. M. van Sleeuwen, Stijn Ruiter, Wouter Steenbeek

Objectives: Crime pattern theory and the related empirical research have remained rather a-temporal, as if the timing of routine activities and crime plays no role. Building on previous geography of crime research, we extend crime pattern theory and propose that an offender’s spatial knowledge acquired during daily routine activities is not equally applicable to all times of day. Methods: We put this extended theory to a first empirical test by applying a discrete spatial choice model to detailed information from the Netherlands on 71 offences committed by 30 offenders collected through a unique online survey instrument. The offenders reported on their most important activity nodes and offence locations over the past year, as well as the specific times they regularly visited these locations. Results: The results show that almost 40% of the offences are committed within the neighbourhoods of offenders’ activity nodes, increasing to 85% when including first-, second- and third-order neighbourhoods. Though not statistically significant in our small sample, the results further suggest that offenders are more likely to commit crime in neighbourhoods they have regularly visited at the same time of day than in neighbourhoods they have regularly visited at different times of day. Conclusion: Our extension of crime pattern theory is only tentatively supported. We argue for replication research with larger samples before any firm conclusions are warranted.

Crime Science volume 10, Article number: 2, 2021, 10p.

Edited by Marcelo F. Aebi · Fernando Miró-Llinares · Stefano Caneppele

This open access book critically revisits 30 years of debate surrounding the evolution of crime trends, aiming to reconcile various hypotheses and controversies. It scrutinizes the concept of the "crime drop," highlighting the methodological pitfalls in understanding the causation mechanisms behind this phenomenon. By examining the impact of information and communication technologies (ICT) on daily routines and crime, the book challenges traditional notions of crime reduction. Drawing on extensive examples, data from official and non-official statistics, and crime surveys, this book illustrates how cyberspace has fundamentally reshaped the nature of crime. Despite this transformation, integrating cybercrime into conventional crime statistics remains an unaccomplished task. The book offers a thorough methodological discussion on measuring cybercrime, addressing the challenges researchers face in quantifying and explaining crimes committed both in cyberspace and across physical and digital boundaries. This book speaks to students, academics, researchers, and practitioners in the fields of criminology, criminal justice, and cybercrime. It is an invaluable resource for anyone seeking to understand the complexities of modern crime trends and the challenges posed by the digital age.

Cham: Springer Nature, 2025, 141 p.

By Aaron Chalfin and Brittany Street

This paper reviews and distills a wide array of recent social science literature and offers an evidence-based vision for how public safety can be maintained while relying less on the use of incarceration. We offer the following lessons from the literature. First, while interventions that increase economic opportunities have been shown to be effective in reducing criminal behavior, particularly income generating crime, interventions which change how people think appear to be even more effective at reducing the types of crimes that most frequently lead to incarceration. Second, a wide variety of investments targeted towards children in disadvantaged neighborhoods appear to be effective and likely pay for themselves over time. Third, while there is a natural concern that diverting criminal defendants from traditional prosecution will erode the deterrence value of criminal sanctions, the evidence suggests that for first-time and younger offenders, individuals who have been diverted – either through a formal program or informally via “non-prosecution” – tend to be less likely to be rearrested in the future. Fourth, the evidence suggests that law enforcement can play an important role in reducing the use of incarceration when police are visible and engage in high-value activities that deter crime or focus their arrest powers more intensively on violent and/or high-volume offenders; in doing so, they have the ability to reduce crime through deterrence and focused incapacitation without increasing the footprint of the justice system. Finally, there is potential to meaningfully reduce incarceration levels through sentencing reforms without compromising public safety – so long as the reforms are structured in such a way as to target the least criminally productive offenders, while retaining in custody those offenders who are most likely to commit the costliest offenses or who are likeliest to offend in high volumes.

Institute for the Quantitative Study of Inclusion, Diversity, and Equity,, 2023. 69p

By Aaron Chalfin, Benjamin Hansen, Jason Lerner, and Lucie Parker

This paper offers experimental evidence that crime can be successfully reduced by changing the situational environment that potential victims and offenders face. We focus on a ubiquitous but surprisingly understudied feature of the urban landscape – street lighting – and report the first experimental evidence on the effect of street lighting on crime. Through a unique public partnership in New York City, temporary streetlights were randomly allocated to public housing developments from March through August 2016. We find evidence that communities that were assigned more lighting experienced sizable reductions in crime. After accounting for potential spatial spillovers, we find that the provision of street lights led, at a minimum, to a 36 percent reduction in nighttime outdoor index crimes.

NBER Working Paper No. 25798 Cambridge, MA: National Bureau of Economic Research, 2019 45p.

By John R. Hipp, Cheyenne Hodgen

Research has typically focused on how certain types of business establishments are associated with the location of crime on street blocks. Studies in this genre, however, often have not accounted for the general business context of the block on which a business is located. This study uses a large sample of blocks in Southern California to test whether the context of businesses matters. We assess whether a nonlinear relationship exists between the total businesses on a block and crime, whether differences exist based on broad categories of businesses—consumer-facing businesses, blue-collar businesses, and white-collar businesses—and whether the mixing of businesses on a block impacts crime. The study finds strong evidence that blocks with more business mixing have higher levels of crime. A 1 standard deviation increase in business mixing is associated with 35%–95% more crime. The relationship between business mixing and crime is moderated by the size of the population on the block. Evidence also shows differences in relationships with crime between consumer-facing and white- or blue-collar businesses. Only modest evidence shows that specific business types are related to crime levels after accounting for this general business context.

Criminology, Volume 62, Issue 4, 2024, pages 859-891