Measures of Crime

 


Three ways to measure crime

1. Crime reported to the Police

• UCR Uniform Crime Report

• FBI

 

2. Survey of Victims

• NCVS National Crime Victimization Survey

• Bureau of Justice Statistics

 

3. Survey of Offenders

• Self Reports

• Several agencies

 


I. UCR Uniform Crime Report: Crime reported to the Police

Careful with the classification of the UCR as Official Statistics in the textbook: NCVS is just as "official".

Reading assignment on the www: FBI UCR FAQ: http://www.fbi.gov/ucr/ucrquest.htm

Someone, somewhere, for some reason, believed that a crime might have been committed and reported it.

 

Question: How does underreporting happen?

• Who is interested in low numbers?

 

Question: How does overreporting happen?

•Who is interested in high numbers?

 

Political Manipulation Techniques:

1. Recording the crime

Example: The UCR handbook for the Police is designed to achieve the highest crime rate possible:

 


"If a number of persons are involved in a dispute or disturbance and a police investigation cannot establish aggressors from the victims, count the number of persons assaulted as the number of offenses"(UCR Police Handbook).


2. Change categories

A) Nixon Example

He wanted to demonstrate that crime decreased under his legislation.

Theft was simply listed for theft above $50 (Seidman & Couzens 1974).

 

B) Conjoin minor assaults with assaults. Number of violent crime goes up.

Categories for forcible rape were merged in the UCR. Now it includes "assaults or attempts to commit rape by force or threat of force" see: http://www.fbi.gov/publish.htm

 

3. Change motivations for reporting

A) No squad car will be detached for a crime report (New York City). People have to come to the station (Tallahassee).

B) Creating social awareness that certain crimes should be reported

 

4. Counseling

Rape crisis Hotline

 

5. Social Construction of Crime

 

Homework: check the UCS on the www. Links are provided on our updated homepage.

 


II. National Crime Victimization Survey (NCVS): Survey of Victims

 

What allows statistics of both agencies (FBI and Bureau of Justice Statistics) to be compared?

Check the FBI's own account how both compare on the WWW at:

http://www.ojp.usdoj.gov/bjs/pub/ascii/ntmc.txt

 

Summary at http://www.ojp.usdoj.gov/bjs/abstract/cv94.htm

Check for trends in the 1996 study : http://www.ojp.usdoj.gov/bjs/abstract/cv96.htm

 


Rough Comparison of the UCR and NCVS

Uniform Crime Reports UCR National Crime Victimization Survey NCVS
FBI Department of Justice

Bureau of Justice Statistics

since 1940s since 1970s
crimes reported to the police

crimes cleared by arrest

age, gender race of offender

crimes reported by victims

sociodemographics of victims

police files household surveys
Rape

Robbery

Assault

Burglary

Larceny

Vehicle theft

+ murder

+ arson

Rape

Robbery

Assault

Burglary

Larceny

Vehicle theft

Bonus: crimes reported

crimes cleared

Bonus: demographic description of the victim

 


Example of an exam question:

 

What allows statistics of the National Crime Survey (NCS) to be compared to the statistics in Uniform Crime Reports (UCR).

a) the exact measurement of crime in the UCR

b) the exact measurement of crime in the NCS

c) the fact that the categories for crimes sampled in both studies are largely identical

d) the fact that UCR reflects crime reported to the police

e) the fact that NCS reflects crime reported by victims

 


 

Third Party Self Report Studies

What can be different in a Third Party Self Report Study as compared to the National Crime Victimization Survey?

 


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Disclaimer: The documents linked to other sources on the WWW, others than http://www2.tltc.ttu.edu/Schneider2/ and its subdirectories, do not necessarily express the views of Texas Tech University or Dr. Andreas Schneider. @Copyright 2006 Andreas Schneider