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Finland
Practice Relating to Rule 62. Improper Use of Flags or Military Emblems, Insignia or Uniforms of the Adversary
Finland’s Criminal Code (1889), as amended in 2008, provides that any person who “misuses … the flag of the enemy … military insignia [or] a military uniform” 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)(11).
(emphasis in original)