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Does Scientific Evidence Support the Widespread Use of SQFs as a Proactive Policing Strategy?

NCJ Number
Policing: A Journal of Policy and Practice Volume: 17 Dated: 2023
Date Published

This paper describes the findings of the Campbell Collaboration Systematic Review on the use of SQFs (Stop, Question, and Frisk) in policing. 


In this paper, the authors report on a recently completed Campbell Collaboration Systematic Review that allowed them to answer key policy questions about the use of SQFs (Stop, Question, and Frisk) in policing. Based on their review of findings, the authors conclude that existing scientific evidence does not support the widespread use of SQFs as a proactive policing strategy. The use of pedestrian stops, commonly known as SQFs (Stop, Question, and Frisk), has been one of the most common yet controversial proactive strategies in modern policing. Is there convincing evidence that pedestrian stops reduce crime? Are claims of negative impacts on individuals confirmed by research? And if there is evidence both of crime reductions and harmful effects, how do such costs and benefits weigh against each other? And finally, how do the impacts of pedestrian stops compare with other proactive policing strategies? (Published Abstract Provided)

Date Published: January 1, 2023