On collaboration of knowledge streams
I hope you appreciate that for justice to happen, all fields of learning have to collaborate with each other, instead of insulting each other for lack of knowledge of the other's domain. Therefore, it is not a disadvantage that a Navigator leaps into the laws, or a policeman takes interest into Navigation. You will be shocked to learn this aspect of cultural history of the world that many of the laws and Cardinal principles of Constitution have actually surfaced from lawsuits which came from the Shipping industry. This includes the supremacy of federal structure over the provincial laws, often described as Federalism. Tort laws have their oldest and widest citations from lawsuits which are of Shipping and Cargo disputes. Owing to the historical fact that Shipping was the oldest form of trade taken by mankind, when it comes to laws, a wealth of legal knowledge resides in the field of transportation by sea.
So much so that even the modern Indian Penal Code, although re-written in 1971 has many sections and one entire chapter dealing with navigation and maritime matters. The police department whose entire functioning is based of this law do not have an iota of knowledge on what aspect these laws refer to, but they surely have to know them as a rote learning, maybe. This special status due confluence of knowledge of the legality exist in highlight only with the shipping and navigation, and this because history as on today speaks largely of navigation, but neither about other industries such as aircrafts, Railways or say the computers.