I’ve been watching the trial.
Multiple Minneapolis police supervisors have testified that placing a detainee in the prone (face-down) position on the ground, with his arms handcuffed behind his back, makes it hard for him to breathe, and that the detainee should be moved onto his side, or into a seated or standing position, as soon as possible. There’s also been testimony that all Minneapolis police officers, including Chauvin, know that through their training.
And multiple police body cam videos show that the detainee was held in that prone, handcuffed position for nine minutes, even after he became unresponsive.
The defense hasn’t started its case yet, though.