Over half of all police killings in 2015 were wrongly classified as not having been the result of interactions with officers, a new Harvard study based on Guardian data has found. The finding is just the latest to show government databases seriously undercounting the number of people killed by police. Researchers compared data from the Guardian’s 2015 investigation into police killings, The Counted, with data from the National Vital Statistics System (NVSS). That dataset, which is kept by the Centers for Disease Control and Prevention (CDC), was found to have misclassified 55.2% of all police killings, with the errors occurring disproportionately in low-income jurisdictions.
— source theguardian.com 2017-10-13