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Curated

Age-by-Race Specific Crime Rates, 1965-1985: [United States] (ICPSR 9589)

Released/updated on: 2005-11-04
Geographic coverage: United States
Time period: 1965-01-01--1985-12-31
These data examine the effects on total crime rates of changes in the demographic composition of the population and changes in criminality of specific age and race groups. The collection contains estimates from national data of annual age-by-race specific arrest rates and crime rates for murder, robbery, and burglary over the 21-year period 1965-1985. The data address the following questions: (1) Are the crime rates reported by the Uniform Crime Reports (UCR) data series valid indicators of national crime trends? (2) How much of the change between 1965 and 1985 in total crime rates for murder, robbery, and burglary is attributable to changes in the age and race composition of the population, and how much is accounted for by changes in crime rates within age-by-race specific subgroups? (3) What are the effects of age and race on subgroup crime rates for murder, robbery, and burglary? (4) What is the effect of time period on subgroup crime rates for murder, robbery, and burglary? (5) What is the effect of birth cohort, particularly the effect of the very large (baby-boom) cohorts following World War II, on subgroup crime rates for murder, robbery, and burglary? (6) What is the effect of interactions among age, race, time period, and cohort on subgroup crime rates for murder, robbery, and burglary? (7) How do patterns of age-by-race specific crime rates for murder, robbery, and burglary compare for different demographic subgroups? The variables in this study fall into four categories. The first category includes variables that define the race-age cohort of the unit of observation. The values of these variables are directly available from UCR and include year of observation (from 1965-1985), age group, and race. The second category of variables were computed using UCR data pertaining to the first category of variables. These are period, birth cohort of age group in each year, and average cohort size for each single age within each single group. The third category includes variables that describe the annual age-by-race specific arrest rates for the different crime types. These variables were estimated for race, age, group, crime type, and year using data directly available from UCR and population estimates from Census publications. The fourth category includes variables similar to the third group. Data for estimating these variables were derived from available UCR data on the total number of offenses known to the police and total arrests in combination with the age-by-race specific arrest rates for the different crime types.
Curated
Restricted

Evaluating the Law Enforcement, Prosecutor, and Court Response to Firearm-related Crimes in St. Louis, 2015-2018 (ICPSR 37408)

Released/updated on: 2020-06-29
Geographic coverage: United States, Missouri, St. Louis
Time period: 2015-07-01--2018-06-30
This study examines the entire range of case-processing decisions after arrest, from charging to sentencing of firearm-related crimes. This study analyzes the cumulative effects of each decision point, after a charge has been issued, on the subsequent decisions of criminal justice officials. It examines criminal justice decisions regarding a serious category of crime, gun-related offenses. These offenses, most of which are felonious firearm possession or firearm use cases, vary substantially with respect to bail, pretrial detention, and sentencing outcomes (Williams and Rosenfeld, 2016). The focus of this study is St. Louis, where firearm violence is a critical public problem and where neighborhoods range widely in both stability and level of disadvantage. These communities are characterized on the basis of a large number of demographic and socioeconomic indicators. The study aims to enhance understanding of the community context of the criminal justice processing of firearm-related crimes.
Curated
Restricted

Evaluation of a Hot Spot Policing Field Experiment in St. Louis, 2012 - 2014 (ICPSR 36129)

Released/updated on: 2017-12-07
Geographic coverage: Missouri, St. Louis
Time period: 2012-01-01--2013-10-31

These data are part of NACJDs Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.

The two central objectives of this project were (1) to evaluate the effect on crime of a targeted patrol strategy mounted by the St. Louis Metropolitan Police Department (SLMPD) and (2) to evaluate the researcher-practitioner partnership that underlay the policing intervention.

The study addressed the following research questions:

  1. Do intensified police patrols and enforcement in crime hot spots result in larger reductions in firearm assaults and robberies than in similar areas subject to routine police activity?
  2. Do specific enforcement tactics decrease certain type of crime?
  3. Which enforcement tactics are most effective?
  4. Does video surveillance reduce crime?
  5. How does the criminal justice system respond to firearm crime?
  6. Do notification meetings reduce recidivism?
  7. Does community unrest increase crime?
  8. Did crime rates rise following the Ferguson Killing?

To answer these questions, researchers used a mixed methods data collection plan, including interviews with local law enforcement, surveillance camera footage, and conducting ride-alongs with officers.

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