That's true. The police are trained to coordinate to find what they believe are people leading the crowd at riots and arrest them. That why they have people with binoculars on the roofs in order to identify people who are leading the crowd and directing. They form pincer maneuvers in their phalanx as they march forward to snatch up the more "intelligent" people in the chaos. They know once the smarter people who know how to organize the chaos are eliminated then they rest of the crowd will become more disorganized and disperse.
There are only two types of humans, followers and leaders. The cops know they can't arrest everyone, but fortunately for them most human beings are followers. Only a very small amount of the population are smart enough and charismatic enough to be leaders. Just eliminate the brains of the operation and its over pretty soon.