This guy spends a lot of time consulting with police to help inform the public of how they protect themselves.
With the stage pickpockets, a lot of them use obvious stooges. (No one can tear a dress shirt from under a sport jacket or suit without giving the "victim" a shirt with velcro that falls apart where needed.)
I do think the guy in that picture was unaware his tie was gone until the pickpocket showed it to him. (Some of these are obviously faked, but I guess as long as the entertainment value is there for the audience, it may not be that important.)