Due Diligence26 Mar 2017 21:44
I've just read a bit more.
The United Nations Draft Articles on Responsibility of States for Internationally Wrongful Acts (the “ILC Draft Articles”), which have been supported by the U.N. General Assembly and the International Court of Justice, provide that a responsible state is obliged to make full reparation for the injury “caused by the intentionally wrongful act of a State.” If the respondent state, however, is able to prove that the claimant contributed to that loss, it is likely that the amount of compensation will be reduced or maybe even voided. The contributory fault defense is a means to weaken the claimants’ submissions with respect to the causation link between the state’s conduct and the injury caused to the investor. It can also be an important factor in determining the state’s liability in the first place.
Article 39 of the ILC Draft Articles provides the basic rules for contributory fault:
“In the determination of reparation, account shall be taken of the contribution to the injury by willful or negligent action or omission of the injured State or any person or entity in relation to whom reparation is sought.”
Even though the ILC Draft Articles deal primarily with diplomatic protection, an ICSID annulment committee has stated that there is no reason not to apply “the same principle of contribution to claims for breach of treaty provisions brought by individuals.”