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Subst Use Misuse. 2017 Jan 28;52(2):214-222. Epub 2016 Oct 21.

The Spatial-Temporal Pattern of Policing Following a Drug Policy Reform: Triangulating Self-Reported Arrests With Official Crime Statistics.

Author information

1
a Division of Global Public Health , University of California at San Diego , San Diego , California , USA.
2
b International Centre for Science in Drug Policy, St. Michael's Hospital , Toronto , Canada.
3
c Tijuana Police Department , Tijuana , Mexico.
4
d Centro de Investigacion y Docencia Economica , Mexico City , Mexico.
5
e School of Law and Bouvé College of Health Sciences, Northeastern University , Boston , Massachusetts , USA.

Abstract

BACKGROUND:

In 2009, Mexico enacted a drug policy reform (Narcomenudeo) designed to divert persons possessing small amounts of illicit drugs to treatment rather than incarceration. To assess reform impact, this study examines the spatial-temporal trends of drug-related policing in Tijuana, Mexico post-enactment.

METHOD:

Location of self-reported arrests (N = 1,160) among a prospective, community-recruited cohort of people who inject drugs (PWID) in Tijuana (N = 552) was mapped across city neighborhoods. Official police reports detailing drug-related arrests was triangulated with PWID self-reported arrests. Exploratory spatial data analysis examined the distribution of arrests and spatial association between both datasets across three successive years, 2011-2013.

RESULTS:

In 2011, over half of PWID reported being detained but not officially charged with a criminal offense; in 2013, 90% of arrests led to criminal charges. Official drug-related arrests increased by 67.8% (p <.01) from 2011 to 2013 despite overall arrest rates remaining stable throughout Tijuana. For each successive year, we identified a high degree of spatial association between the location of self-reported and official arrests (p <.05).

CONCLUSION:

Two independent data sources suggest that intensity of drug law enforcement had risen in Tijuana despite the promulgation of a public health-oriented drug policy reform. The highest concentrations of arrests were in areas traditionally characterized by higher rates of drug crime. High correlation between self-reported and official arrest data underscores opportunities for future research on the role of policing as a structural determinant of public health.

KEYWORDS:

Drug policy; Mexico; drug laws; police; spatial-temporal analysis

PMID:
27767367
PMCID:
PMC5378066
DOI:
10.1080/10826084.2016.1223689
[Indexed for MEDLINE]
Free PMC Article

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