As a GM, if it is purely for descriptive context, I can't see it being a problem. If it is to get around a restriction, I would say it is up to the GM.
For example, some solid block cuffs, keeping your hands by your waist. Since the mote floats by your head and to 'draw' your weapon, you need to grab the mote, it sounds like a simple game mechanic (To help the story) to put people on even footing during the prisoner transfer. So, for story principles, probably not here.
You have the Quick draw feat, and you want to do the Thor imagery, the mote flying to your hand as you start your swing (Swift + standard), I would allow that since it is cinematic and looks cool.