Hungary
Practice Relating to the Use of Prohibited Weapons
Under Hungary’s Criminal Code (1978), as amended in 1998, “any person who uses or orders the use of a weapon or instrument of war prohibited by international treaty in a theatre of military operation or in an occupied territory against the enemy” is guilty, upon conviction, of a war crime. 
Hungary, Criminal Code, 1978, as amended in 1998, Section 160/A(1).