Chauvin asks judge to block evidence of previous alleged neck restraints Derek Chauvin, the former Minneapolis police officer who in May knelt on the neck of George Floyd for more than eight minutes, is requesting that the judge overseeing his trial Prosecutors want 2017 arrest of teen in Floyd death trialProsecutors in the upcoming trial of a former Minneapolis police officer charged with killing George Floyd want to introduce evidence of a 2017 arrest in which they say the officer held his knee on the back of a 14-year-old boy and ignored his pleas that Former Minneapolis police officer charged in George Floyd’s death seeks to bar evidence of past neck and body restraintsDerek Chauvin has asked a judge in his murder trial to prevent prosecutors from citing eight incidents they allege show a pattern of excessive force.