“The Upper Tribunal shall not make a decision under subsection (1A) above modifying the effect of the forfeiture rule in any case unless it is satisfied that, having regard to the conduct of the offender and of the deceased and to such other circumstances as appear to the Upper Tribunal to be material, the justice of the case requires the effect of the rule to be so modified in that case.”
“The forfeiture rule does not exist to provide a further punishment over and above that imposed by criminal law. It does reflect a principle of public policy that no man (or in this case his estate) may benefit from his own wrong…. And, though the impact of the rule may be modified, it is a relatively rare case for it to be disapplied altogether.”