Once the purview of sci-fi and dystopian literature, rule be machines is increasingly becoming a goal of the Cosmic Era
Normal punishments tend to involve either fines, imprisonment, amputation or execution, but not all crimes are going to be bad enough to be executed for, and imprisonment is often a waste of resources. Here are thirty punishments for those who get out of line and get caught and convicted.
Many, perhaps most fantasy lands are monarchies, which can be ruled well when the monarch is a clever and able man or woman devoted to his or her people. But what happens when the monarch is ill, or is tyrannically cruel, or a young child, or is otherwise blatantly unfit to rule? How can he or she be dealt with without risking civil war as powerful nobles fight for the crown?
A lot of what adventurers do is illegal, from fighting and carrying weapons in towns, to robbery and tomb raiding. Sooner or later, many of them are going to be arrested and find themselves up before a judge.
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.
The size and number of knots in hair, tied around neck, or hanging from belt could signify family, importance, worship, guild affiliations. Being able to translate the meaning of the size and placement of knots can give you a a large understanding of who somebody is.
May be used in a more barbaric society. Where in cities peoples clothes and crests show who they are, barbarians have no need for this so use knots.