The Uniform Crime Reporting System is a national database for
law enforcement programs to report arrests. The data represent
reported crimes in the vicinity where the arrest occurred, rather
than the area of residence of the arrestee. The reporting uses only
four drug categories: 1) Opium, cocaine and their derivatives, 2)
marijuana, 3) other dangerous non-narcotic drugs such as
barbiturates and Benzedrine and 4) synthetic narcotics such as
Demerol and methadone. See the Federal Bureau of Investigation's
Frequently Asked Questions about the Uniform Crime Report at
http://www.fbi.gov/ucr/urquest.htm.
The arrests reported at this website represent the following
types of crimes: homicide, aggravated assaults, sexual assaults,
other assaults, robbery, burglary, larceny-theft, auto thefts,
driving under the influence, violations of liquor laws, public
drunkenness, stolen property, prostitution, and violations of drug
laws. Note that some arrests are directly related to alcohol and
drug use (e.g. public drunkenness) and others are indirectly related
(e.g. homicide). The number of alcohol and drug-related arrests was
determined by applying a fraction that represents the association
that each type of arrest has with alcohol or drug use. For example,
driving under the influence is directly related to alcohol use and
violating drug laws is directly related to drug use. Each of these
arrests were counted as one arrest in computing rate of alcohol and
drug arrests, respectively. In contrast, larceny-theft is linked
indirectly with alcohol use (.028 of an arrest) and drug use (.296
of an arrest), and was therefore counted as a fraction of a single
arrest. The fractions, .028 and .296, were assigned to represent the
proportion of larceny-theft arrests associated with prior alcohol
and drug use, respectively. The alcohol and drug associated
fractions used for the arrest data came from the FBI's Uniform Crime
Reporting System. Click
here to see the alcohol and drug-related arrest fractions used for
the Uniform Crime Report data. After all associations with prior
alcohol and drug use were computed, all alcohol-related and
drug-related arrests were totaled.
Participation in the
National Uniform Crime Report Program is strictly voluntary,
therefore the data are limited in coverage. In Indiana, only 73 of the 92
counties provided uniform crime report data to the Federal Bureau of
Investigation during the years 1995, 1997, 1998 and 1999.
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