Straight, pragmatic business. Well... and some moral stuff too.
RP-ly, the president has an electorate so he made a move to appease some of the abolitionists/Human rights = Ban on organs/slaves.
More RP-ly, Since the patrols are already sent, they might as well make sure the Outcast economy is weakened. Maybe it's just -my- point of view, but any faction in Tau 23 would consider weakening these dreaded pirates highly beneficial. (In a perfect, forum-deal-deprived 1.0 reality I mean)