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An Algorithm Told Police She Was Safe. Then Her Husband Killed Her.
(www.nytimes.com)
This is a most excellent place for technology news and articles.
My impression from the article is more that they're not doing any kind of garbage-in assessment: nobody is making sure they're getting answers about the right person (eg: some women date more than one guy) and some women don't feel safe giving accurate answers to the police, and there aren't good failsafes available for when it's wrong; you're forced to hire legal counsel and pursue a change via the courts.
That and, their action for low-risk is all wrong. The stakes are too high to not give someone help, regardless of the risk level.