Thread by @WCCO

Day 8 of testimony in the #DerekChauvinTrial continues this morning with Sgt. Jody Stiger, a use-of-force expert from the Los Angeles Police Department.

He is the state's first paid expert to testify.

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Sgt. Stiger began his testimony yesterday afternoon. He called Chauvin's use-of-force against #GeorgeFloyd "excessive."

He is currently being questioned prosecutor Steve Schleicher.

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Stiger reviews surveillance and body-worn camera footage.

Stiger testifies that Chauvin's left knee was on #GeorgeFloyd's neck and his right knee was on Floyd's back.

Stiger notes that Chauvin's feet were spread, with the majority of his weight pushing down on his knees.

Stiger is asked about pain compliance.

Schleicher: "You would inflict pain for the purpose of having the subject obey your commands?"

Stiger: "Yes."

Schleicher: "What if there's no opportunity for compliance?"

Stiger: "At that point, it's just pain. "

Now Stiger is explaining proportionality in how force should be used in relation to a subject's behavior.

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Stiger reads the definition of deadly force.

Schleicher asks if the force used against #GeorgeFloyd for 9 minutes and 29 seconds would constitute deadly force.

Yes, Stiger said.

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Stiger is now speaking about the dangers of positional asphyxia, something long known by law enforcement.

He says it's a threat even when body weight is not applied. Added weight only increases the risk.

Schleicher asks if the crowd's "foul language and name-calling" factored into Stiger's assessment of the threat to officers.

"It did not," he said. Stiger added that he did not perceive the crowd as a threat, as they were mostly expressing concern for #GeorgeFloyd.

The state plays body-worn camera video where #GeorgeFloyd tells officers that he's in pain and can't breathe.

When asked how much longer Chauvin continued to pin him down, Stiger said the restraint lasted about another 6 minutes.

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Schleicher ends his questioning.

Now Eric Nelson, Derek Chauvin's attorney, is cross examining Stiger.

Nelson asks Stiger if he's ever testified as an expert in state or federal court.

Stiger says no.

Nelson asks if Stiger has ever been trained by the Minneapolis Police Department.

Stiger says no, he hasn't.

Nelson confirms that Stiger reviewed a mountain of documents from the MPD, some of which weren't relevant to this case.

In response, Stiger wrote a 461-page report. However, it has no new info since January.

Nelson gets into MPD's use of force policy and the factors that pertain to reasonableness.

Nelson: You concluded yesterday that this was an excessive use of force?

Stiger: Yes.

N: But that's not the standard. The standard is "objectively reasonable" use of force.

Nelson: Every single time an officer responds to a call, there is inherent risk.

Stiger: Correct

Nelson: A reasonable officer has to prepare for the risk level to change.

Stiger: Yes

Nelson lays out the details of the call on May 25.

N: It's reasonable that an officer would have a heightened sense of awareness?

Stiger: Yes

Nelson says that based on the use of force continuum, Derek Chauvin could have stunned or tased #GeorgeFloyd as he was resisting arrest.

Stiger says yes.

"But he didn't do that,' Nelson says.

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Nelson: Have you ever had someone attempt to bargain with you to avid arrest?

Stiger: Yes.

N: Have you ever had a person feign a physical aliment?

S: Yes.

Nelson: Is it common for people who have been using drugs or alcohol to deny they've been using drugs or alcohol?

Stiger: Yes.

Nelson confirms that Stiger believes it was initially reasonable for officers to put George Floyd in the prone position after they couldn't get him into the squad car.

Nelson asks if its possible for a person in handcuffs to still be a threat. Stiger says it depends.