Rikers Island prisoner risk classification system increases violence
A USD 27.5 million risk-based data analytics system designed to reduce violence at Rikers Island prison, New York, contributed to assaults and other attacks there increasing by almost 50 percent, according to a ProPublica investigation. Created by consulting company McKinsey, the system used an algorithm based on factors including age, possible gang affiliation, and any prior history in jail to determine where to house people behind bars with the least risk for confrontation. In April 2017, McKinsey reported that violence had dropped over 50 percent in the 'Restart' housing units at the prison. But documents and correspondence analysed by ProPublica discovered that the numbers were 'bogus' and the relevant units stacked with inmates thought to be compliant and unlikely to get into fights or to attack staff. It also transpired that that I ntelWatch, a data analytics system designed to predict gang violence and future violence at the prison, was 'riddled with bugs and errors', did not work , and was never used, despite having been paid for. Furthermore, McKinsey consultants and corrections officials used encrypted messaging app Wickr to communicate and share documents in a deliberate effort to avoid transparency and accountability. McKinsey argued the programme positively impacted the areas of the jail in which it was piloted, and that its consultants were not involved in or aware of efforts to 'improperly skew or reduce the reported levels of violence in the Restarts.' System 🤖 New York City Department of Correction website New York City Department of Correction Wikipedia profile Operator: New York City Department of Correction Developer: McKinsey Country: USA Sector: Govt - justice Purpose: Reduce violence Technology: Classification algorithm Issue: Accuracy/reliability; Effectiveness/value Investigations, assessments, audits 🧐 ProPublica (2019). New York City Paid McKinsey Millions to Stem Jail Violence. Instead, Violence Soared
- Date it happened
- 2019-12-01
- Organisation involved
- New York City Department of Correction
- Product, system or model
- IntelWatch
This incident was imported from AIAAIC and is used under CC BY-SA 4.0. Our additions to it — the structured fields, the translation, the checks against other reports — are published under the same licence.
This is a record of what was reported, not a finding that anyone broke the law. If it names your organisation and you believe it is wrong, the corrections process is free and open to everyone.