Suggestion from a standpoint of complete ignorance:
How would it be if the EU bought a few, based them in Malta (which is some 187 nm from Tripoli), then turned them loose to fly all along the Libyan littoral to take out anything which looked like a possible "refugee" carrier (always provided there were no signs of occupation !)
The 30mm cannon should be adequate for the smaller craft and a few rockets would be handy for the larger stuff.
But of course ISIS and the people traffickers would probably say their Human Rights were being trampled on, and bring a case before the European Court !
Just an idea.
Works for me . . . do we need to vote on it (block voting for UKIP)