MN v. Derek Michael Chauvin Trial - DR. MARTIN TOBIN - PULMONOLOGIST - DIRECT

HENNEPIN COUNTY, MINNESOTA - APRIL 8: 12:32:05 looking at subject's back there are four weights out of a gym and big wheel is going to have 17.5 diameter and measure inches of that trouble is when officers kneel on back they don't place olympic knee on back so area is smaller than place in study so pressure exherted on back is 10x more on floyd than on the study. so presser on knee is 10x greater yhan the bell in the gym. any study involve knee on neck? no - major trouble getting that ethically done. any study go on for 9 min 29 secs? no very brief. so did we cover all of these sthings? yes 12:34:03 (Footage by Law&Crime via Getty Images)