Not many of us know what it feels like to be hit with pepper spray.
But from now on, those who do come into the firing line will feel it six times stronger thanks to a new, more potent spray being used by police - the Sabre Red Crossfire.
But what does the added heat actually mean, and what will it do to you?
The new spray claims to be 67 times hotter than hot sauce, but strength isn't measured in sauces - there are actual scientific scales.
The most reliable is the Major Capsaicinoids Rating, which measures the heat-bearing chemicals.
Those chemicals inflame the mucous membranes in your eyes, nose, mouth and lungs.
Your eyes will slam shut from the intense burning and you might have trouble breathing.
The effects can last from 30 minutes to two hours.
If you think touching your eyes after cutting chillis is painful, that's nothing compared to the feeling of being pepper-sprayed.