"The other main question discussed at some length during the argument is what approach should be adopted to the concepts of injustice and oppression within the meaning of s.82. This is, of course, touched on in the first sentence of Diplock para 1. And, so far as concerns oppression, it is worth noting too Lord Diplock's statement (at p284) that: 'the gravity of the offence is relevant to whether changes in the circumstances of the accused which have occurred during the relevant period are such as would render his return to stand his trial oppressive'. That said, the test of oppression will not easily be satisfied: hardship, a comparatively commonplace consequence of an order for extradition, is not enough."