McCarthy v Wellington City [1966] NZLR 481 is a cited case in New Zealand regarding the legal issue of causation involving negligence cases in tort.

[1] The council had left a safe containing explosives unfastened to the ground and without any warning signs in a local quarry.

The council defended the matter by arguing that the injury was unforeseeable, and even if it was foreseeable, causation had been broken by the intervening act of a third party, namely by the boy giving the injured boy the detonator.

Footnote: The Accident Compensation Act [1974] now bars such a claim

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