Judiciary
The Judiciary branch of a Mars settlement will be developed as the settlement grows. Magistrates may be able to carry out most of the judiciary functions of society. The availability of transportation back to Earth may offer an interesting alternative in cases where the local authorities cannot provide sufficient expertise. In particular during the early stages of the settlement, when a specific Martian identity is not yet fully developed and martian law is still undefined.
Space law already exists regarding the ownership of land on Mars, as well as production and living facilities.
Crimes and misdemeanors
Not all crimes have the same gravity or consequences.
The United Nations office for Outer Space Affairs may eventually provide some services for the Mars colony.[1]