Related Rule
Practice Relating to Rule 33. Personnel and Objects Involved in a Peacekeeping Mission
Finland’s Criminal Code (1889), as amended in 2008, provides that any person who “attacks … persons engaged in tasks referred to in the Charter of the United Nations (Treaties of Finland 1/1956) or property used by them” 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)(9).
(emphasis in original)
In 1994, during a debate in the UN Security Council, Finland condemned attacks against UNPROFOR. 
Finland, Statement before the UN Security Council, UN Doc. S/PV.3367, 21 April 1994, p. 34.