Tort – Joint tortfeasors. The appellant organisation 'Sea Shepherd UK' (SSUK) was part of an international effort to end the illegal fishing of blue fin tuna. One campaign orchestrated by the American parent organisation had caused damage to the respondent's vessel and released a large quantity of tuna from the nets and cages. The respondent issued proceedings seeking damages and alleged that SSUK had been a joint tortfeasor because it had acted in furtherance of a common design by supplying the vessel which had rammed its own. The judge held that SSUK was not a joint tortfeasor. The Court of Appeal, Civil Division, allowed the respondent's appeal. The Supreme Court allowed SSUK's appeal and held that the judge had been entitled to find that its contribution to the tort had, on the evidence, been de minimis.