I suppose the point is that, since he is innocent until proven guilty, that right still applies. He may be wanted for child rape but that doesn't mean he did it (although going on the run is suggestive).
All the same, I think extradition to face crimes committed overseas ought to be much less of a problem. Especially to places such as the US, Canada, mainland Europe, etc., where the right to a fair trial is as deeply ingrained as it is here. This judgement confuses me -- not least because even the terms of his bail would seem to imply breaching the right to liberty. No passport? 12 hour curfew? Why is that any less free than facing trial for a crime which he may, or may not, have committed, but for which justice should be done?