There are only 5 elements I would like to see used in the story. Interpretation of the 5 elements is up to the author.
1.There are no laws.
2.There is a system to settle disputes.
3.Any person or group can submit any dispute to the system as long as they wish to be a party to the dispute.
4.Disputes brought before the system are decided at random,( coin toss, drawn straws, dice, etc.) and the loosing party (individual or group) is executed immediately.
5.Everyone gets along with everyone else or they eventually in up judged the system.