The west wants the "negotiations" between Serbia and Kosovo to continue, Serbia refuses because of the taxes (100%) that were imposed on it by Kosovo. Haradinaj is their proponent and doesn't want them removed, his political carrier depends on him not giving up on them. So what does he do when the pressure from the west is getting too great? He gets called to Hague, which gives him a reason to resign, thus not be involved in the removal of the taxes and then he will be released and come back to run for another political position. Also he will get prove his "innocence" by getting release from Hague, which is a win/win for him.