Étienne Blais, Université de Montréal

Research

Read how they describe their research on their Université de Montréal profile.

Politiques publiques Prévention du crime Sécurité routière Armes à feu Violence Théories du contrôle social Méthodes quantitatives Vulnérabilité et résilience Criminalité Pratiques policières Santé mentale Santé mentale et société

Latest papers

The effect of a police crackdown on online drug sales: on the importance of targeting vendors' reputation?
The International journal on drug policy · 2026 · first author
Supporting Multicomponent Gun Control Laws: A Need for Valid and Comprehensive Research.
American journal of public health · 2023 · first author
Diverting people who use drugs from the criminal justice system: A systematic review of police-based diversion measures.
The International journal on drug policy · 2022 · first author

All 8 publications

Latest funding

Chaire de recherche / Action concertée / Prévention de la violence armée dans la région de Montréal
FRQSC · 2022 · Principal investigator
$379,418
Crime scripts and the situational prevention of driving while impaired
SSHRC · 2013 · Principal investigator
$71,994
Théorie du comportement planifié et délinquance routière : entre opportunités et rationalité
SSHRC · 2011 · Principal investigator
$17,007

All 5 grants and awards

8 publications.

01

The effect of a police crackdown on online drug sales: on the importance of targeting vendors' reputation?

Blais E, Décary-Hétu D, Arbour W, Gagné C, Perrin-Plouffe R, Chaîné A

The International journal on drug policy20261 citationsFirst authorOpen Access

DOI: 10.1016/j.drugpo.2025.105113 PMID: 41422741

02

Supporting Multicomponent Gun Control Laws: A Need for Valid and Comprehensive Research.

Blais E

American journal of public health2023First author

DOI: 10.2105/ajph.2023.307431 PMID: 37939333

03

Diverting people who use drugs from the criminal justice system: A systematic review of police-based diversion measures.

Blais E, Brisson J, Gagnon F, Lemay SA

The International journal on drug policy2022First author

DOI: 10.1016/j.drugpo.2022.103697 PMID: 35489210

04

Improving police responses to suicide-related emergencies: New evidence on the effectiveness of co-response police-mental health programs.

Blais E, Brisebois D

Suicide & life-threatening behavior2021First author

DOI: 10.1111/sltb.12792 PMID: 34254702

05

Toward improved evaluations of laws against drink-driving.

Blais E, Maurice P

Lancet (London, England)2019First author

DOI: 10.1016/s0140-6736(18)33166-0 PMID: 30553499

06

Graduated driver licensing and differential deterrence: The effect of license type on intentions to violate road rules.

Poirier B, Blais E, Faubert C

Accident; analysis and prevention2018

DOI: 10.1016/j.aap.2017.10.001 PMID: 29102714

07

Improving the safety effect of speed camera programs through innovations: Evidence from the French experience.

Blais E, Carnis L

Journal of safety research2015First author

DOI: 10.1016/j.jsr.2015.08.007 PMID: 26683556

08

The effect on collisions with injuries of a reduction in traffic citations issued by police officers.

Blais E, Gagné MP

Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention2010First author

DOI: 10.1136/ip.2009.025379 PMID: 20876763

Chaire de recherche / Action concertée / Prévention de la violence armée dans la région de Montréal

Principal investigatorFRQSC2022Actions concertées

Principal investigators: Blais, Étienne

Keywords: PREVENTION, APPROCHE INTERSECTORIELLE, EVALUATION, RESEAUX SOCIAUX, JEUNES, VIOLENCE ARMEE; Violence; Évaluation, analyse et gestion de projets

$379,418

Crime scripts and the situational prevention of driving while impaired

Principal investigatorSSHRC2013

Principal investigators: Blais, Étienne

$71,994

Théorie du comportement planifié et délinquance routière : entre opportunités et rationalité

Principal investigatorSSHRC2011Standard Research Grants

Principal investigators: Blais, Étienne

Keywords: théorie du comportement planifié;opportunité criminelle; rationalité; impulsivité; distribution de la déviance

$17,007

The Quebec inmate survey on illegal firearm acquisition patterns

Co-investigatorSSHRC2010Standard Research Grants program

Principal investigators: Morselli, Carlo

Keywords: illegal firearms; social networks; illegal markets

$118,552

Examen de l'étendue des connaissances sur l'usage optimal des médicaments psychotropes en milieu carcéral

Co-investigatorCIHR2008Knowledge Synthesis Grant

Principal investigators: Lafortune, Denis; Dubreucq, Jean-Luc

Keywords: Accès Aux Services; Application Des Connaissances; Coordination Des Services; Dépistage; Formation; Meilleures Pratiques; Médicaments Psychotropes; Observance De La Prescription; Obstacles À L'Implantation; Pratiques Prometteuses; Prisons; Recension Des Écrits; Troubles Mentaux Graves; Usage Optimal

$80,925

From public funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998 with their latest competition results, the Canada Foundation for Innovation, Genome Canada, the Canadian Space Agency, Canada Research Chairs, the Fonds de recherche du Québec, Ontario research funding, Michael Smith Health Research BC, the Canadian Cancer Society, Heart & Stroke and Brain Canada.

Frequent collaborators

School of Criminology
Department of Economics

Co-authors at Université de Montréal, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.

David Décary-Hétu

School of Criminology

1 shared papers, latest 2026

William Arbour

Department of Economics

1 shared papers, latest 2026

Write to this professor

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Applying for

Paper to mentionMention their FRQSC grant from 2022

Subject: Prospective PhD student: Politiques publiques Dear Professor Blais, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "The effect of a police crackdown on online drug sales: on the importance of targeting vendors' reputation?" (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] I also saw your FRQSC-funded project "Chaire de recherche / Action concertée / Prévention de la violence armée dans la région de Montréal" (2022), and I would be glad to contribute to work in that direction. Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]