In recent weeks, the world has looked on as governments use chemical irritants to control protesters and riots. Whether it’s tear gas, pepper spray, mace or pepper balls, all have one thing in common: ...

Protests against treatment of people detained at Delaney Hall turned physical on Memorial Day when officers used pepper spray ...

Nothing disperses a crowd like a shot of chili pepper to the eye. Pepper spray—scientifically known as oleoresin capsicum spray—is banned in war but has made its presence known during the Occupy Wall ...

Fire off a can of bear spray and you’ll deploy a 25-foot-long hot pepper cloud that should prevent a bear from attacking. The stuff’s not lethal, but it will temporarily irritate a bear’s eyes and ...

This March, most federal correctional officers started carrying pepper spray. It was a big policy shift for the Bureau of Prisons, which had long been opposed to arming its employees, saying weapons ...

One of the more gripping images to emerge from the ongoing protests in Brazil is of a young woman, her face clenched shut as a police officer in tactical armor blasts her with chemical spray from a ...