This seems like it would be common sense, but for some reason it's not to cops.
I watch these videos of cops subduing people, and it's like literally 3 200+ lb guys with their knees and full weight holding a guy down face first on asphalt.
Common sense kind of dictates that it'd be difficult to breathe or stay calm with that much pressure laid on you..now if the person has asthma or some kind of other medical condition, the potential for shit to get deadly quickly escalates.
Once the guy is in cuffs and on the ground what is the great danger he poses where you and 4 other able bodied people can't watch the guy?