Règle correspondante
Finland
Practice Relating to Rule 147. Reprisals against Protected Objects
At the CDDH, Finland stated:
The main intention of paragraph 4 [of draft Article 46 which became Article 51 of the 1977 Additional Protocol I] was to extend the protection to the civilian population as a whole. That was desirable, but it was not sufficient. Civilian objects should also be protected from reprisals everywhere, even in the field of hostilities. 
Finland, Statement at the CDDH, Official Records, Vol. XIV, CDDH/III/SR.7, 13 March 1974, p. 54, § 29.
At the CDDH, Finland, with regard to amendments made by other States concerning the prohibition of reprisals, stated that it “accepted [those amendments] which would prohibit reprisals against civilian objects”. 
Finland, Statement at the CDDH, Official Records, Vol. XIV, CDDH/III/SR.15, 7 February 1975, p. 118, § 7.