The Los Angeles Police Department (LAPD) has developed a rating procedures for use in detecting drug-impaired drivers. The purpose of the rating procedures is to determine whether the driver is impaired and to identify the responsible drug class (e.g., stimulant, depressant, etc.). As part of a research effort designed to provide data regarding the validity of the LAPD Drugged Driver Detection program, a laboratory evaluation sponsored jointly by NHTSA and the National Institute on Drug Abuse (NIDA), was recently completed by the Johns Hopkins University. The experimental procedure involved the administration of specific drug dose conditions to volunteer subjects who were then rated independently by each of four LAPD Drug Recognition Experts. The drugs administered were: Marijuana (2 dose levels; Depressants--Diazapam (Valium; 2 dose levels); and Secobarbital (1 dose level); and Stimulants--d-Amphetamine (2 dose levels). The results can be summarized as follows: For certain drug-dose combinations most subjects were rated as intoxicated, but for other combinations most were not; Subjects rated as intoxiccated had almost always receive a drug and raters were quited accurate in specifying which drug had been given to the subjects they rated as intoxicated; and Subjects who did not receive a drug were almost always rated as not intoxicated.

  • Record URL:
  • Corporate Authors:

    Johns Hopkins University, Baltimore

    Behavioral Pharmacology Research Unit
    Baltimore, MD  United States  21218

    National Highway Traffic Safety Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    National Institute on Drug Abuse

    5600 Fishers Lane
    Rockville, MD  United States  20852
  • Authors:
    • Bigelow, G E
    • Bickel, W E
    • Liebson, I A
    • Nowowieski, P
  • Publication Date: 1985-5

Media Info

  • Features: Figures; Tables;
  • Pagination: 17 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00450359
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: Final Rpt., HS-806 753
  • Contract Numbers: DTNH22-84-2-07213
  • Files: HSL, NTL, TRIS, USDOT
  • Created Date: Nov 30 1985 12:00AM