00806382

Component

http://onlinepubs.trb.org...nepubs/circulars/ec020.pdf

After a vehicle is stopped, the next step in the process is the driver interview, typically conducted by the officer at the driver-side window of the vehicle. The purpose of this interview, in conjunction with other observations made by the officer, is to determine whether or not there is reasonable suspicion to proceed with an impaired driving investigation. If yes, the driver is typically asked to step out of the vehicle and submit to field sobriety testing. If no, no further impaired driving investigation would likely be conducted. The objective of this paper is to summarize available research on process and procedure as they relate to an impaired driving investigation at the driver-side window immediately following a vehicle stop. Throughout this paper, the term "DUI" encompasses operating under the influence; driving under the influence; operating while intoxicated; operating under the influence; operating at a blood alcohol concentration above 0.08 or 0.10 percent, and similar charges. It should be noted that this general use of the term "DUI" obscures important distinctions between each charge as defined uniquely in the laws of each state.

This paper appears in Transportation Research Circular No. E-C020, Issues and Methods in the Detection of Alcohol and Other Drugs. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

00806377

E-C020

English

Tower, Bill; Ferguson, Susan A

p. E1-E12

2000-12

Transportation Research Circular

References; Tables (1)

Detection and identification; Drugged drivers; Drunk drivers; Impaired drivers; Interviewing; Police; Traffic law enforcement

Highways; Safety and Human Factors; Security and Emergencies; I83: Accidents and the Human Factor

TRIS, TRB

Feb 14 2001 12:00AM

• EVIDENCE OF ALCOHOL AND DRUG IMPAIRMENT OBTAINED AFTER ARREST (WITH DISCUSSION)
• IDENTIFICATION OF IMPAIRMENT OUTSIDE THE VEHICLE: FIELD SOBRIETY TESTS (WITH DISCUSSION)
• INCREASING THE OPPORTUNITIES TO EXAMINE IMPAIRED DRIVERS (WITH DISCUSSION)
• ISSUES IN THE DETECTION OF DRUGS OTHER THAN ALCOHOL (WITH DISCUSSION)
• LEGAL AND CONSTITUTIONAL ISSUES RELATED TO DETECTION
• PROSECUTING AND ADJUDICATING DWI DETECTION EVIDENCE (WITH DISCUSSION)
• WORKSHOP SUMMARY: WHAT'S NEEDED TO IMPROVE POLICE DETECTION OF ALCOHOL AND OTHER DRUGS IN DRIVERS