Violence committed by police officers in the United States is paradoxically highly documented and incompletely documented. We frequently encounter this situation in our work—some victims’ stories are told by many sources, while other victims’ stories are rarely if ever told. This is the gap statistics can fill.  In 2015, the US Bureau of Justice Statistics concluded that two federal efforts to document deaths that occur during arrest were woefully incomplete. Their analysis relied on the same statistical methods HRDAG’s team has been using internationally for decades, so we examined their approach, considering various assumptions required ...