Also testifying was Minneapolis Police Chief Medaria Arradondo, who told prosecutors Chauvin violated department policies and showed a "disregard for life" when he kneeled on George Floyd's neck for over nine minutes.
The judge said he was considering allowing Mr. Nelson to only ask Mr. Hall about whether Mr. Floyd had fallen asleep in the vehicle, a possible reaction to drug use.
According to testimony and records submitted Tuesday, Chauvin took a 40-hour course in 2016 on how to recognize people in crisis - including those suffering mental problems or the effects of drug use - and how to use de-escalation techniques to calm them down.
Mr Arradondo agreed and acknowledged that this must also be taken into consideration when officers decide to use force.
Schleicher showed a still image taken from bystander video of Chauvin with his knee on Floyd's neck - one that jurors have seen several times - and asked Mercil: "Is this a use of force?"
The report said Floyd died of "cardiopulmonary arrest, complicating law enforcement subdual, restraint, and neck compression". He said that while that type of restraint may occasionally happen, it wouldn't be authorized for someone who is handcuffed and under control.
New Zealand could open border with Australia from end of week
Kiwis have been free to travel to most Australian jurisdictions without being forced into hotel quarantine since October.
"Not that I'm aware of, sir", Mercil replied.
Officers are taught to put a person on their side "as soon as possible", when a person is "under control", Blackwell said.
The jury in the trial of Derek Chauvin heard his prolonged use of force broke police protocol.
Chauvin has pleaded not guilty to murder and manslaughter charges for Floyd's arrest on suspicion that Floyd had used a fake $20 bill to buy cigarettes at a store.
Bystander video of Floyd crying that he couldn't breathe as onlookers yelled at Chauvin to get off him sparked protests around the USA that descended into violence in some cases.
Before he was pinned to the ground, a frantic Floyd struggled with police who were trying to put him in a squad auto, saying he was claustrophobic.
Police Divers Join Search For Nigerian Student Missing In UK
As temperatures plummet, she's anxious the cold weather could cause her son substantial pain due to his sickle cell disease. He was captured on CCTV walking alone in Smarts Lane, Loughton, towards Epping Forest at 12.39am on Tuesday March 23.
Under questioning by prosecutors, Langenfeld said that based on the information he had, it was "more likely than the other possibilities" that Floyd's cardiac arrest - the stopping of his heart - was caused by asphyxia, or insufficient oxygen.
Chauvin's lawyer, Eric Nelson, has argued that Chauvin "did exactly what he had been trained to do over his 19-year career" and that it was Floyd's use of illegal drugs and his underlying health conditions - not the officer's knee - that killed him.
Chauvin's lawyer Nelson has argued that police at the scene were distracted by what they perceived as a growing and increasingly hostile crowd of onlookers.
Nelson also questioned whether Chauvin's knee was on Floyd's neck, playing a few seconds of bystander video side-by-side with footage from an officer's body camera that Arradondo agreed appeared to show Chauvin's knee on Floyd's shoulder blade.
Several experienced officers, including the police chief himself, have testified that Floyd should not have been kept pinned to the pavement for close to 9 1/2 minutes by prosecutors' reckoning as the Black man lay face-down, his hands cuffed behind his back.
Lt. Johnny Mercil, who has been with the Minneapolis Police Department since 1996 and heads the department that trains officers on use of force, said the department doesn't teach its officers to use their knee on the neck of a suspect who is prone and handcuffed.
USA to join talks aimed at salvaging Iran nuclear deal
The Joe Biden administration has said that if Iran returns to full compliance with the JCPOA, Washington would do the same. Iran confirmed in January it was enriching uranium to 20 percent purity, well beyond the threshold set by the 2015 deal.
Arradondo, the city's first Black chief, fired Chauvin and three other officers the day after Floyd's death.