1. will the black-shirts be willing to serve as witness if they are 暴徒 in other occasions?! they would be exposing their identity to the police.
2. so many 'fake' actors/actresses in this acts, e.g. pregnant lady, a guy who appeared in the press conference next day (with 林 three-white; 722) claimed to be beaten up was actually a 'white-shirt' on 721 (heard from Discuxx) - are these people willing to serve as witnesses?!
so if there is no witness, what shall the police do?!