b) Key Points
Give him the active role in sitting and standing up in a circular fashion under his own power by telling him “Bring your [left] leg towards your groin, leg flat on the ground. I will push you onto your knee so you can stand up under your own power. Do you understand?”.
The rear, entwined bent-wristlock is the most secure technique for retaining control over him when executing a spiral stand-up, but use any method you like.
PRO TIP: Be conscious of his ability to headbutt, kick, or body check you when he stands up.
Use the rear, escort-(double) twistlock to control him if he is relatively peaceful after he stands up, otherwise retain the rear bent-armlock.