The design for the crowd control barriers, as shown and described.
FIG. 1 is a front and top perspective view of a crowd control barrier.
FIG. 2 is a left side view of a second embodiment of a crowd control barrier showing a board in the channel. The right side view is a mirror image thereof.
FIG. 3 is a front view of a crowd control barrier of FIG. 1; and,
FIG. 4 is a front view of a second embodiment of a crowd control barrier of FIG. 2.