information:filtering
Modern Constitutional doctrine: International Shoe doctrine

In the modern era, the reach of personal jurisdiction has been expanded by judicial re-interpretation and legislative enactments. Under the new and current doctrine, a state court may only exert personal jurisdiction over an individual or entity with "sufficient minimal contacts" with the forum state such that the particular suit "does not offend 'traditional notions of fair play and justice.'" The "minimum contacts" must be purposefully directed towards the state by the defendant. This jurisdiction was initially limited to the particulars of the International Shoe Co. v. Washington holding, that is to jurisdictional inquiries regarding companies, but was soon extended to apply to all questions of personal jurisdiction. When an individual or entity has no "minimum contacts" with a forum State, the Due Process Clause of the Fourteenth Amendment prohibits that State from acting against that individual, or entity. The lack of "minimum contacts" with the owner of property also constitutionally prohibits action against that property (in rem jurisdiction) even when the property is located within the forum state.