Minneapolis Police Chief Medaria Arradondo testified against Derek Chauvin Monday, saying the former officer "absolutely" violated procedures and his training during the arrest of George Floyd. Arradondo explained the department's policies on the use of force and told jurors that Chauvin had not been following them when he kept his knee on Floyd's neck for more than nine minutes, the New York Times reports. "Once Mr. Floyd had stopped resisting, and certainly once he was in distress and trying to verbalize that, that should have stopped," said the chief, who fired Chauvin and three other officers after Floyd's May 25 death. Chauvin's actions were "in no way, shape, or form" part of policies or training and "it is certainly not part of our ethics or our values," Arradondo said, per the AP.
Arradondo said the department's use-of-force training emphasizes the "sanctity of life." He said Floyd's alleged offense, using a suspected counterfeit $20, is not one for which people are usually taken into custody. Experts say it is unprecedented for a police chief to testify against a former officer, the Guardian notes. Earlier Monday, the doctor who pronounced Floyd dead testified that there was not a heartbeat "sufficient to sustain life" when Floyd was taken to a Minneapolis hospital, the Star Tribune reports. Dr. Bradford Wankhede Langenfeld said he believed the most likely cause of Floyd's cardiac arrest was asphyxia —a lack of oxygen. (Read more George Floyd stories.)