It could… though I'd rather not take any chances. It's not easy to get rid of shadows, asides from the fact they can apparently up and walk away.

[ Initially, he'd thought maybe light exposure would enable them to bring them back under control, but they'd need to surround someone in lights to ensure there were no chances of shadows being cast, then he'd figure that probably wouldn't be feasible in the first place. ]

As far as I've been able to tell, they're somewhat intangible.

[ Like a Stand, almost. Against his better judgement, he calls upon Moody Blues — keeping an eye on Reiju to gauge her reaction on if she's able to see his Stand or not — he's not sure what the rules are here. ]