So why bring cocaine to a “protest”? “If people are going to an event where they are expecting trouble, violence, or they’re expecting there to be a high level of socialisation with their in-group, then cocaine is good for that,” says Sumnall. “It’s good for providing energy, focus, concentration, and reduces fatigue. So if you wanted to be alert at a public event like this, where you might be expecting aggression and confrontation, cocaine is the drug to do that.”