The "Dozen Rules" represented a set of principles established by Urias Xhaxin. These rules guided the actions of the Free Lance's crew, a privateering vessel, and were considered representative of the ethical standards generally held by privateers. The Rules stipulated:
- Maintain mobility; remain adaptable.
- Avoid conflicts with equally matched opponents, and eschew fair play.
- Refrain from operating within familiar territory.
- Engage in games of chance.
- Establish a reputation.
- Operate covertly.
- Remain focused on the objective.
- Prepare meticulously, but anticipate unforeseen circumstances.
- Certainty is an illusion.
- The crew of the targeted vessel should not be regarded as adversaries.
- Always seize the advantage.
- Ensure the welfare of your crew.