Swiss Federal Constitution in the context of "Switzerland as a federal state"

The primary law governing nationality of Switzerland is the Federal Act on Swiss Citizenship, which came into force on 1 January 2018. Switzerland is a member state of the European Free Trade Association (EFTA) and the Schengen Area. All Swiss nationals have automatic and permanent permission to live and work in any European Union (EU) or EFTA country.

Swiss nationals are citizens of their municipality of origin, their canton of origin, and the Confederation, in that order: a Swiss citizen is defined as someone who has the citizenship of a Swiss municipality (article 37 of the Swiss Federal Constitution). They are entered in the family register of their place of origin. The manner by which Swiss citizens acquire their place of origin differs depending on whether they acquired Swiss citizenship by filiation (jus sanguinis), ordinary naturalisation, or facilitated naturalisation. Marriage has in and of itself no effect on the places of origin of the spouses.

Swiss law is a set of rules which constitutes the law in Switzerland.

The federal judiciary of Switzerland consists of four federal courts: the Federal Supreme Court in Lausanne and Lucerne; the Federal Criminal Court in Bellinzona; the Federal Patent Court in St. Gallen; and the Federal Administrative Court in St. Gallen. These courts are charged with the application of Swiss federal law through the judicial process.

The Federal Supreme Court in Lausanne is established in the Swiss Federal Constitution as the supreme judicial authority of Switzerland. It is the court of appeal for all decisions of the cantonal courts of last instance, and also for most decisions of the three federal courts of first instance.