This article explains the Dutch theory of partial liability and why the application of this theory benefited the plaintiffs in the case of Mothers of Srebrenica from a tort law perspective. Partial liability is a theory under Dutch law to redeem causal uncertainties, and therefore functions as an exception to the main rule of sufficient degree of proof of a condicio sine qua non (CSQN) between the wrong and the damage, justified by legal justice and reasonableness. Loss of a chance is one variation of partial liability and was applied in the case Mothers of Srebrenica. The theory of lost chance essentially makes it possible to establish liability to a proportion, notwithstanding the causal uncertainty between the wrong and the original damage which would have resulted in a denial of the claim under tort law.