> You have somehow missed the rest of what she said. The point was also that if he were sent to Sweden and the Americans requested his extradition, the UK would have to agree to it before it could happen.
I agree that she said that but it is patently nonsense. If he were to hand himself in and serve out a sentence for skipping bail, and was then extradited to Sweden, the UK authorities would have no further control whatsoever: he wouldn't be on UK territory and he is not a UK citizen. The idea that the UK would be consulted and asked to approve any subsequent extradition request made to Sweden by the US is nonsense.