In this context, the Schengen evaluation reports have often signalled as a weakness in the implementation process the fact that a considerable part of the Schengen rules are included in non-binding documents.
V zvezi s tem je bilo v schengenskih ocenjevalnih poročilih kot slabost pri postopku izvajanja večkrat navedeno dejstvo, da je velik del schengenskih pravil vključen v nezavezujoče dokumente.