A campaign to reduce impaired driving through retail-oriented enforcement in Washington State
archive: archived pipeline: cataloged verified
Get this paper ↗ (full text — opens at the source; we link to it, we don't host it)
Summary
This report evaluates the Washington State Liquor Control Board’s (WSLCB) DUI Reduction Program, a retail-oriented enforcement initiative launched in 2002 to reduce impaired driving. The program targets bars and restaurants identified as high-risk based on "place of last drink" data from DUI arrest reports. While anecdotal evidence suggested the program reduced alcohol sales to intoxicated patrons, the Washington Enforcement and DUI Reduction demonstration project, conducted between July 2005 and April 2007, aimed to rigorously assess its impact on three outcomes: retailer compliance with sales laws, blood alcohol concentration (BAC) levels of DUI arrestees, and the frequency of DUI arrests linked to targeted establishments. The study employed a quasi-experimental pre-post design with comparison sites. Twenty establishments across Washington’s Northern and Southern regions were selected based on high DUI association rates and randomly assigned to intervention or comparison groups. The intervention involved a two-phase approach: an intensive period (October 2005–March 2006) featuring notification letters, DUI education packets, offers of responsible beverage service (RBS) training, and unannounced premise checks; followed by a regular enforcement period. Compliance was measured using pseudo-intoxicated patrons (PIPs) who attempted to purchase alcohol at baseline (August 2005) and post-intervention (June 2006). DUI arrest data was collected for three months before and after the intensive enforcement phase. Results were mixed. The intervention failed to improve retailer compliance; the rate of sales to PIPs at intervention sites increased from 50% to 88.9%, while comparison sites remained stable at approximately 78%. However, the program yielded two positive outcomes. The average number of monthly DUI arrests naming intervention sites as the place of last drink decreased by 36% (from 11.4 to 7.3), compared to a 7% decrease in comparison sites. Additionally, the average BAC of arrestees linked to intervention sites dropped significantly from 0.135 g/dL to 0.127 g/dL, whereas BACs in comparison sites increased. The authors attribute the lack of compliance improvement to limitations including small sample size, inconsistent delivery of educational materials, low uptake of voluntary RBS training, and potential erosion of effects due to the timing of the follow-up assessment. The study concludes that while the current program reduced DUI arrests and BAC levels, it did not alter retail sales practices. The authors recommend strengthening future interventions by requiring RBS training, ensuring personal delivery of educational materials to emphasize legal seriousness, and increasing undercover investigations to better observe server behavior. They also suggest conducting follow-up assessments immediately after intensive enforcement to capture peak effects and mitigate erosion. These findings indicate that a more robust combination of enforcement and mandatory education is necessary to achieve comprehensive compliance and further reduce alcohol-related harm.
Key finding
The intervention significantly reduced the average blood alcohol concentration of DUI arrestees from .135 g/dL to .127 g/dL and decreased monthly DUI arrests linked to intervention sites by 36 percent, despite failing to reduce sales to intoxicated patrons.
Methodology
field_study
Sample size: 20
Provenance
The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed. Discovered via bulk_ingest_rosap on 2026-05-23 (6 acquisition events logged).
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | rosap | — | — | 2 | 2026-05-23 |
| archive | success | — | — | — | 1 | 2026-05-23 |
| extract | success | cached | — | — | 2 | 2026-06-10 |
| clean | success | — | — | — | 1 | 2026-06-01 |
| chunk | success | — | — | — | 1 | 2026-06-01 |
| embed | success | — | — | — | 1 | 2026-06-02 |
| enrich | success | — | — | — | 1 | 2026-05-23 |
| promote | success | — | — | — | 1 | 2026-05-23 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 3 | 2026-06-10 |
| tag | success | vector_similarity | — | — | 19 | 2026-06-11 |
| verify | success | — | — | — | 2 | 2026-06-10 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.
Topics
Ranked by relevance to this paper. Hover a topic for its definition.
Information type
What kind of knowledge this paper contributes, grouped by family — independent of topic (what it is about) and method (how it was studied).
- Applied Guidance: countermeasure evaluation