"A person's extradition to a category 1 territory is barred by reason of the passage of time if (and only if) it appears that it would be unjust or oppressive to extradite him by reason of the passage of time since he is alleged to have committed the extradition offence or since he is alleged to have become unlawfully at large (as the case may be)."
"'Unjust' I regard as directed primarily to the risk of prejudice to the accused in the conduct of the trial itself, 'oppressive' as directed to hardship to the accused resulting from changes in his circumstances that have occurred during the period to be taken into consideration; but there is room for overlapping, and between them they would cover all cases where to return him would not be fair. Delay in the commencement or conduct of extradition proceedings which is brought about by the accused himself by fleeing the country, concealing his whereabouts or evading arrest cannot, in my view, be relied upon as a ground for holding it to be either unjust or oppressive to return him. Any difficulties that he may encounter in the conduct of this defence in consequence of the delay due to such causes are of his own choice and making. Save in the most exceptional circumstances it would be neither unjust nor oppressive that he should be required to accept them."
"In my respectful judgment ... the answer to the question of where responsibility lies for the delay may well have a direct bearing on the issues of injustice and oppression. Thus, the fact that the requesting government is shown to have been inexcusably dilatory in taking steps to bring the fugitive to justice may serve to establish both the injustice and the oppressiveness of making an order for his return, whereas the issue might be left in some doubt if the only known fact related to the extent of the passage of time, and it has been customary in practice to advert to that factor..."