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.
Court system of Canada
The Federal Court exists primarily to review administrative decisions by federal government bodies such as the immigration board and to hear lawsuits under the federal government's jurisdiction such as intellectual property and maritime law. It also has concurrent jurisdiction with the superior trial courts of the Provinces to hear civil lawsuits brought against the federal government. The Federal Court also has jurisdiction to determine inter-jurisidctional legal actions between the federal government and a province, or between different provinces, provided the province in question has passed corresponding legislation granting the Federal Court jurisdiction over the dispute. Also the Federal Courts have the power to review decisions, orders, and other administrative actions of most federal boards, commissions, and tribunals. That means most federal government can be challenged in the federal court. Also with the Federal Court, the system may refer back to questions of law, jurisdiction,or price to one of the federal courts at any stage of proceeding.