Welcome to the lead. I'm Jake Tapper at any moment. We expect President Biden to come

before the cameras and update the nation on the status of coronavirus vaccinations in

the United States. And we'll bring that to you live when he does that. But first, we're

going to start today with the trial of former Minneapolis police officer Derek Chauvin,

who of course has been charged with murdering George Floyd last May. Today, we heard from

the lieutenant who trained hundreds of officers, including Chauvin, on how to properly use

force against suspects who are resisting arrest. He says Chauvin putting his knee on Mr.

Floyd's neck was not an authorized use of force that he taught, and that a neck restraint

could render someone unconscious in less than 10 seconds. The instructor did concede that

officer Chauvin's technique could have been part of some other police training, of course,

as CNN's Josh Campbell reports. One by one, veteran members of the Minneapolis police

department took the stand, each part of the department's training force. Today's testimony

added to the chorus of police department witnesses, including the chief, who have said

Derek Chauvin's use of a knee on George Floyd's neck was not part of their training. Would

it be appropriate and within training to hold a subject in that prone restraint position

with a knee on the neck and a knee on the back for an extended period of time after the

subject has stopped offering any resistance? No sir. Or has lost their pulse? No sir. If

you don't have a pulse on a person, you'll immediately start CPR. But the defense pushed

back with this image. This is a specific kind of photograph that demonstrates the placement

of a knee as it applies to prone handcuff and correct?

Correct.

While the witnesses emphasized a focus on minimal force and prompt medical care. How

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