police

38 posts
Data for 200M records for traffic stops

The Stanford Open Policing Project just released a dataset for police traffic stops across the country: Currently, a comprehensive, national repository detailing interactions between police and the public doesn’t exist. That’s why the Stanford Open Policing Project is collecting and standardizing data on vehicle and pedestrian stops from law enforcement departments across the country — and we’re making that information freely available. We’ve already gathered over 200 million records from...

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Inflated counts for cleared rape cases

Newsy, Reveal and ProPublica look into rape cases in the U.S. and law enforcement’s use of exceptional clearance. The designation allows police to clear cases when they have enough evidence to make an arrest and know who and where the suspect is, but can’t make an arrest for reasons outside their control. Experts say it’s supposed to be used sparingly. Culled data from various police departments shows the designation is...

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The Crime Machine

I’m behind on my podcast listening (well, behind in everything tbh), but Reply All covered the flaws of CompStat, a data system originally employed by the NYPD to track crime and hold officers accountable: But some of these chiefs started to figure out, wait a minute, the person who’s in charge of actually keeping track of the crime in my neighborhood is me. And so if they couldn’t make crime...

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Predictive policing algorithms used secretly in New Orleans

Speaking of surveillance cities, Ali Winston for The Verge reports on the relationship between Palantir and New Orleans Police Department. They used predictive policing, which is loaded with social and statistical considerations, under the guise of philanthropy. Palantir gained access to personal records: In January 2013, New Orleans would also allow Palantir to use its law enforcement account for LexisNexis’ Accurint product, which is comprised of millions of searchable public...

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Statistical detection of potential child abuse cases

Dan Hurley, reporting for The New York Times, describes the use of statistical software to assist call screeners: [T]he decision to screen out or in was not Byrne’s alone. In August 2016, Allegheny County became the first jurisdiction in the United States, or anywhere else, to let a predictive-analytics algorithm — the same kind of sophisticated pattern analysis used in credit reports, the automated buying and selling of stocks and...

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Download comprehensive police shootings data

Data for police shootings is usually the subset that only includes fatalities. Vice News made requests nationwide to get data on people who were shot but not killed by police. To accompany their story, Vice News made the data and code available for download: Ultimately, we obtained some data from 47 departments — with 4,099 incidents in all. Departments in New York’s Suffolk and Nassau Counties didn’t provide us with...

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Mapping Police Officer Slayings By State

Newly sworn in police officer Ashley Guindon, center, was killed responding to a 911 call on her first day working for the Prince William County (Va.) Police Department. She was 28. Image via Twitter. A rookie Virginia police officer working her first official shift was shot and killed Saturday while responding to a domestic violence dispute, authorities say. The officer, Ashley Guindon, 28, was killed a day after being sworn...

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Predictive policing

Crime and data have an old history together, but because there are new methods of collection and analysis these days, there are new decisions to make. The Marshall Project, in collaboration with the Verge, looks at the current state of predictive policing and the social issues that surround it. As predictive policing has spread, researchers and police officers have begun exploring how it might contribute to a version of policing...

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Police violence incident data

There isn't a complete government record for people killed by police, which is why efforts such as the Guardian's The Counted project exists. Mapping Police Violence is another source to look at, and they have a dataset for download for shootings from 2013 to present. We believe the data represented on this site is the most comprehensive accounting of people killed by police since 2013. The most liberal estimates project...

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Fudging the crime statistics and police misconduct

CompStat is a program that started in the New York Police Department, and several other departments have implemented it since. Officers are held accountable by tracking crime over time. Crime goes up, based on the data, and you can ask why. It seems like a fine idea, but problems arise when humans game the system to fill quotas. FiveThirtyEight highlights one such case within the NYPD. Garbage in, garbage out,...

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