| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | tear gas | United States | Used by law enforcement for crowd control and riot dispersal | 2 |
| 2 | tear gas | United States | Used by law enforcement for crowd control and riot dispersal. | 1 |
| 3 | tear gas | United States | Used by law enforcement for crowd control | 1 |
| 4 | tear gas | United States | Used by law enforcement for crowd control and riot situations | 1 |