Related Rule
Practice Relating to Rule 161. International Cooperation in Criminal Proceedings
Section D. Political offence exception to extradition
Luxembourg’s Law on the Punishment of Grave Breaches (1985), in a part dealing with the conditions for a possible extradition of war criminals, states: “The crimes provided for in Article 1 [i.e. grave breaches of the 1949 Geneva Conventions] are neither considered to be political crimes nor acts connected with similar crimes.” 
Luxembourg, Law on the Punishment of Grave Breaches, 1985, Article 11.