In the Cosmic Era, the proliferation of arcanotech, cyborgs, robots, parapsychic threats, black market weapons, new illegal drugs constantly hitting the market, all backed up by large organized criminal syndicates, the average police officer doesn't stand a chance.
Diseased people, (leprosy or any other such fear inducing disease) when traveling, will often times wear a cloak that entirely covers their body and ring a bell as they travel, used as a warning for any others to stay away. Could be used for a disguise or safe passage. ... you meet strangely cloaked people, sometimes ringing a bell. "Please give us something to eat, mighty heroes!" This is time to show how good they are.