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Increased DUI (Driving Under the Influence) Enforcement Program - Stockton (CA) - Third Annual Report

NCJ Number
74400
Author(s)
J Hause; E Chavez; R Hannon
Date Published
1979
Length
144 pages
Annotation
The third Annual Report for the Stockton, Calif., Increased DUI (Driving Under the Influence) Enforcement Program reviews the impact of two experiments concerning the effectiveness of a highly-trained ten-person DUI patrol in decreasing the number of drinking drivers in Stockton.
Abstract
Data were gathered for two experiments, one in 1976 and one in 1977, on the alcohol-related collision patterns, the nonalcohol-related collisions, the blood alcohol concentration of drivers at roadside surveys, the DUI and non-DUI traffic arrests, and costs involved. Enforcement hours for the ten-man task force were from 8 p.m. to 4 a.m. on Friday and Saturday nights. During Experiment I (1976) the Traffic Task Force was assigned specific patrol areas. January through March, 1977, served as a return to baseline period for the evaluation data. The patrols did not work during this period. Experiment II conducted (April through December, 1977) utilized ten one-man units on a citywide basis for experiment I, show that the presence of the Traffic Task Force did increase the number of DUI arrests and the number of traffic citations issued for nonalcohol related traffic offenses. The number of legally intoxicated persons driving on the city streets during the enforcement hours decreased significantly. The citywide analysis of the collision data does not statistically support the impact hypothesis, possibly the result of an insensitive statistical design. The data are presented and analyzed in the 25 tables appended to the text. Eighteen tables are included in the text.