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Cluster analysis

Cold Cases and Serial Killers (Part 1)

September 2023

In April 2018, the Golden State Killer, Joseph DeAngelo was arrested. NIJ support helped lead to his arrest, and in the aftermath of the arrest, NIJ Social Science Analyst Eric Martin was among those tasked with finding other cases NIJ helped law enforcement solve. Eric joins the show to talk about some of those cases, and answer some broader questions about serial killers: What is a serial killer? Are they on the rise? How do we know how many serial killers are currently active?

Current State of Knowledge about Stalking and Gender-Based Violence: The Known, Unknown, and Yet To Be Known

February 2022

Nearly one in six of women experience stalking victimization at some point during their life, and most are stalked by someone who they know—typically current or former intimate partners. Given the escalation of violence and potential harm that an individual may commit while stalking someone, it is important to bring more attention to this issue. This brown-bag session highlights a panel of scholars to share what the field currently knows about stalking behaviors and victims, including a focus on intimate partner violence, non-partner relationships, and police response.

The Evidence We Leave Behind (Part 2)

June 2022
Gregory Dutton, a physical scientist at NIJ, and science writer Jim Dawson continue their conversation on the microbiome: what it is, how it applies to forensics, and the evolution of its role in forensic science.

NIJ-Funded Research on Firearms Violence in Urban Cities Advancing Scientific Evidence to Inform Practice

December 2021

In this full thematic panel, renowned experts will present a series of papers summarizing the newest findings of NIJ-funded research projects on criminal offenses with firearms in urban areas. Researchers used various criminological and other theories, including routine activity theory, socio-ecological and socio-environmental perspectives, and advanced mixed-study methods, including surveys and spatio-temporal designs, to produce scientific evidence to inform practice.

A Statistical Approach to Crime Linkage

Date Published
2016
Publication Type
Research (Applied/Empirical), Report (Study/Research), Report (Grant Sponsored), Program/Project Description
Agencies
NIJ-Sponsored

Virtual Conference on School Safety - Welcome Message, Overview of CSSI, and a Philadelphia Story

February 2021

On February 16-18, 2021, the National Institute of Justice hosted the Virtual Conference on School Safety: Bridging Research to Practice to Safeguard Our Schools. This video includes a welcome message, an overview of the Comprehensive School Safety Initiative and School Safety Research at NIJ, and the presentation on "A Philadelphia Story: Innovating and Improving in a Large Urban District," by Abigail Gray and Kevin Bethel, School District of Philadelphia.

Dual System Youth: At the Intersection of Child Maltreatment and Delinquency

December 2020

Across the country, child welfare and juvenile justice systems now recognize that youth involved in both systems (i.e., dual system youth) are a vulnerable population who often go unrecognized because of challenges in information-sharing and cross system collaboration. In light of these challenges, national incidence rates of dual system youth are not known.

Delinquency, Victimization, and the Developing Brain: Results from the ABCD-Social Development Study

December 2020

The Adolescent Brain Cognitive Development – Social Development Study (ABCD-SD) is a longitudinal study on the relationship between the developing brain and delinquency and victimization. Supplementing ABCD brain and cognitive development measures, ABCD-SD protocol measures a wide array of delinquency- and victimization-related risks, protective factors and outcomes. These presentations will describe early adolescent findings from ABCD-SD on delinquency and victimization.