Ius publicum

Ius publicum is Latin for public law. It is to protect the interests of the Roman state (while ius privatum (private law) concerned relations between individuals).Public law will only include some areas of private law close to the end of the Roman state.

Ius publicum was used also to describe obligatory legal regulations, such as ius cogens, which is now a term used in public international law meaning basic rules which cannot (or should not) be broken, or contracted out of. Regulations that can be changed are called today ius dispositivum, and they are used when party shares something and are not in opposition.

See also

• Roman law