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.
Separation of powers
Besides the constitutional court the judicial branch at the federal level is made up of five supreme courts—one for civil and criminal cases ("Bundesgerichtshof"), and one each for administrative, tax, labour, and social security issues. There are also state ("Länder / Bundesländer") based courts beneath them, and a rarely used senate of the supreme courts.