Related Rule
Israel
Practice Relating to Rule 96. Hostage-Taking
Israel’s Nazis and Nazi Collaborators (Punishment) Law (1950) includes “killing of hostages” in its definition of war crimes. 
Israel, Nazis and Nazi Collaborators (Punishment) Law, 1950, Section 1(b).
In 2009, in a report on Israeli operations in Gaza between 27 December 2008 and 18 January 2009 (the “Gaza Operation”, also known as “Operation Cast Lead”), Israel’s Ministry of Foreign Affairs stated: “Civilians shall not be held [as] hostages”. 
Israel, Ministry of Foreign Affairs, The Operation in Gaza 27 December 2008–18 January 2009: Factual and Legal Aspects, 29 July 2009, § 226.