Originally Posted by orbitmic

Minor correction - if I'm not mistaken, it is not 20% of passengers but 100% of passengers (except children) on 20% of Schengen flights (including domestic). In other words, if you are 'lucky' you are on a non-controlled flight and all will go fast, if your flight 'won the lottery' checks will be carried out on all passengers on your flight. At least that's what the law requests.