“…about their legal consequences would not amount to a defence: Greig v Insole [1978] 1 WLR 302; Pritchard v Briggs [1980] Ch 338 (Goff LJ). The latter case was a case of conspiracy to injure by unlawful means. But in Mainstream Properties Ltd v Young [20…”
“… other cases, judges had said that if the defendant knew the facts, then a mistake about their legal consequences would not amount to a defence: Greig v Insole [1978] 1 WLR 302; Pritchard v Briggs [1980] Ch 338 (Goff LJ). But in Mainstream in this court Arden LJ specifically disagreed with that view on the basis that the law about mis…”