Hardly - he had seven years from the point of his departure in which a Conservative, not this coalition, government was in power before Tony Bliar took over the reins in 1997. He could've returned at any time during that time, but didn't, and the other point to note is that he was never, legally or technically, 'on the run'. Note that the judge in his original trial failed to set bail and thus he was free to roam at leisure. A judicial balls-up, no doubt, but he did nothing wrong in bogging back to his homeland. Any sense of moral disapproval doesn't make something illegal.