While being fitted with the restraints, Yao Yu was extremely cooperative and not only was there no resistance, but there wasn't even a verbal complaint. He even proactively suggested that the agents from the Field Operations Department inject him with a muscle relaxant to ensure he wouldn't escape.
The agents from the Field Operations Department naturally refused his request.
Muscle relaxants are not administered to those being interrogated unless absolutely necessary... especially to non-infected individuals.
Once injected, it can cause anything from weakness in the limbs and incontinence to cardiac arrest or respiratory failure. The dosage is strictly controlled, and even a slight mistake could lead to severe consequences.
It is known that in some countries, this kind of drug is used for lethal injection execution.
