Related Rule
Finland
Practice Relating to Rule 14. Proportionality in Attack
Finland’s Criminal Code (1889), as amended in 2008, provides that any person who “initiates an attack that causes the loss of human life or injuries … that are clearly excessive in comparison with the anticipated real and direct military benefit” shall be “sentenced for a war crime to imprisonment for at least one year or for life”. 
Finland, Criminal Code, 1889, as amended in 2008, Chapter 11, Section 5(1)(8).
(emphasis in original)