Wisconsin circuit courts
In addition, the courts are constrained from taking action that will encroach on the powers of the legislative or executive branches. Under the separation of powers doctrine, no branch of government may exercise a power of government assigned exclusively to another branch. The purpose of separating powers among the branches of government is to avoid concentration of governmental power in the hands of a new and to give the various branches the ability to check actions by the other branches.
South African administrative law
South African administrative law is the branch of public law in that country which regulates the legal relations of public authorities, whether with private individuals and organisations or with other public authorities, or better say, in present-day South Africa, which regulates "the activities of bodies that "exercise public powers or perform public functions", irrespective of whether those bodies are public authorities in a strict sense." According to the Constitutional Court, administrative law is "an incident of the separation of powers under which the courts regulate and control the exercise of public power by the other branches of government."