Related Rule
Practice Relating to Rule 155. Defence of Superior Orders
Finland’s Criminal Code (1889), as amended in 2008, states:
Section 14 – Order by the Government and command of a superior
A person who has committed or attempted a war crime, an aggravated war crime or a petty war crime on the order of an authority exercising governmental power or of an entity exercising other public power or on the command of a superior is free of penal liability only if:
1) he or she had had a legal obligation to obey the orders of the Government or the commands of his or her superior,
2) he or she did not know that the order or command is against the law, and
3) the order or command was not clearly against the law. 
Finland, Criminal Code, 1889, as amended in 2008, Chapter 11, Section 14.