I. General Provisions
Article 13
Free passage
(1) Persons summoned by the International Criminal Court or an International Tribunal from a foreign country to appear before the Court or Tribunal or persons whose presence is required at the seat of the International Criminal Court or International Tribunal shall for such purposes have a right of free passage through Liechtenstein, where they may not be prosecuted or punished or detained on account of any act engaged in prior to their entry.
(2) Prosecution, punishment or detention on account of an act engaged in prior to entry is admissible if the person summoned overstays the time required for transit through Liechtenstein and could actually have left the territory.
(3) No safe passage shall be granted where the International Criminal Court or International Tribunal requests the arrest of the person summoned (Articles 25, 27 and 28 below).
Transit proceedings
Transportation and transit through State territory for surrender
EDIT.