starting at the simple end of the scale, Germany's federal constitutional court is the Bundesverfassungsgericht, or BVerfG
Germany's federal penal code is the Strafgesetzbuch, or StGB
the law that introduced the civil code (Bürgerliches Gesetzbuch, BGB) was the Einführungsgesetz zum Bürgerlichen Gesetzbuche (EGBGB)