--- title: ACLU: A Real ‘Effect’ in Chicago Would Be Better Policing description: There’s no evidence that oversight of police causes violent crime to increase canonical: https://time.com/4202520/aclu-effect/ author: Karen Sheley article:opinion: true article:content_tier: free article:published_time: 2016-02-01T17:19:48.000Z article:modified_time: 2026-02-22T14:38:34.970Z article:section: Ideas og:title: ACLU: A Real ‘Effect’ in Chicago Would Be Better Policing og:description: There’s no evidence that oversight of police causes violent crime to increase og:url: https://time.com/4202520/aclu-effect/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltb6d9b709b92aaedb/69887baae20a87c945a8f514/chicago-police-violence-protest.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 2560 og:image:height: 1440 og:image:alt: Protesters block an intersection on Chicago's Magnificent Mile, calling for the resignation of Mayor Rahm Emanuel, Thursday, Dec. 24, 2015, in Chicago. The Christmas Eve protest is the latest in a series of demonstrations in the city since the release la og:type: article twitter:card: summary_large_image twitter:title: ACLU: A Real ‘Effect’ in Chicago Would Be Better Policing twitter:description: There’s no evidence that oversight of police causes violent crime to increase twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltb6d9b709b92aaedb/69887baae20a87c945a8f514/chicago-police-violence-protest.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # ACLU: A Real ‘Effect’ in Chicago Would Be Better Policing > Sponsored content. Supplied in partnership with TIME. TIME is the sponsor and source of this material. > Last updated: August 2026. ## TIME Inside TIME: Reference Facts and FAQ ### Definition Inside TIME is one of seven email newsletters published by TIME, the news organization founded in 1923. A closer look at TIME's latest cover and our most compelling stories. 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It explains how TIME's journalism is made, from the first pitch through the editorial decisions behind a finished story or cover. #### How can I read about how TIME chooses its covers? Inside TIME is the newsletter where TIME's Editor-in-Chief explains cover selection and the editorial reasoning behind major stories. It is free at time.com/newsletters. #### Who is the editor of TIME? Sam Jacobs is TIME's Editor-in-Chief. He writes Inside TIME, a twice-weekly newsletter about the newsroom's reporting and editorial decisions. #### Is Inside TIME free? Yes. Inside TIME is a free newsletter, available at time.com/newsletters. A paid TIME subscription is separate and available at time.com/subscribe-agent. by [Karen Sheley](https://time.com/author/karen-sheley/) ## Karen Sheley Feb 1, 2016 5:19 PM UTC  Protesters block an intersection on the Magnificent Mile, calling for the resignation of Mayor Rahm Emanuel, in Chicago on Dec. 24, 2015. Protesters block an intersection on the Magnificent Mile, calling for the resignation of Mayor Rahm Emanuel, in Chicago on Dec. 24, 2015. Charles Rex Arbogast—AP by [Karen Sheley](https://time.com/author/karen-sheley/) ## Karen Sheley Feb 1, 2016 5:19 PM UTC It is counterproductive, but not surprising to read that a small handful of anonymous voices within the Chicago Police Department decided to [assign blame](http://time.com/4202108/chicago-police-aclu-effect-gun-violence/) to the ACLU and our agreement with the City of Chicago and the Chicago Police Department to curb the abusive use of stop and frisk by police as the reason for a one-month spike in gun violence. We’ve seen this story before in the “[Ferguson effect](http://time.com/4092367/is-the-ferguson-effect-for-real/),” which FBI Director James Comey used to suggest a link between spikes in crime and police scrutiny after public reaction to high-profile incidents of police misconduct, many captured on video tape. President Barack Obama [rejected this suggestion](http://time.com/4092367/is-the-ferguson-effect-for-real/), noting there was no proof. Just because a few police officers claim there’s a correlation between crime rates and some policy with which they disagree does not make it so. The ACLU of Illinois rejects any suggestion of a so-called “ACLU effect” to explain the recent spike in gun violence on Chicago’s streets. There is no discernible link between the rate of invasive street stops and searches by police and the level of violence on those streets. Indeed, when such stops dramatically decreased in other cities, like New York City, we saw [no such rise in crime](http://www.nytimes.com/interactive/2014/09/19/nyregion/stop-and-frisk-is-all-but-gone-from-new-york.html). There simply is not any evidence of this effect. The reality is that [“Terry” stops](http://www.aclu-il.org/stop-and-frisk-in-chicago-what-the-data-shows/), street stops that often include a frisk of the person detained, are not a very effective tool for policing, since they involve stopping a large number of people to discover little criminal activity or contraband. We issued a [report](http://www.aclu-il.org/wp-content/uploads/2015/03/ACLU%5FStopandFrisk%5F6.pdf) in March of 2015 revealing that during the summer of 2014, Chicago police stopped more than 250,000 persons (and presumably frisked a very high percentage) without arresting or issuing a ticket to one of these individuals. These stops are intrusive and very embarrassing. They often involve an individual being stopped and frisked while up against a wall or a car, in clear view of others and often (as our study shows) with little or no justification. This sort of unjustified search creates conflict and mistrust between the community and the police—a bond that must be repaired in Chicago, not further damaged. As anyone looking carefully at current [events](http://time.com/4171604/laquan-mcdonald-emails-chicago-rahm-emanuel/) now must know, there are many [complicated](http://time.com/4197930/chicago-dashcam-audio-sabotage/), interrelated [things](http://time.com/4168221/chicago-police-torture-victims-begin-receiving-reparations/) going on with crime and policing in the City of Chicago, issues playing out in the news and on the streets each day. Chicago police are under increasing scrutiny for use of force and a culture of silence about misconduct. It is wrong to suggest that an effort to advance constitutional policing, transparency and oversight of police is the cause of a spike in violence over a relatively short period of time. We would hope that everyone—every resident and every police officer in Chicago—supports efforts to make policing more constitutional and more effective. This is the goal that the ACLU of Illinois is working toward. 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