not that integrated, as matter of fact until last few years and maybe still even nowadays labor bureau database was not linked to Visa EEB database, so i could get work permit on invalid visa although they should be strictly linked

i guess they are quite thorough only when it comes down to dissent (though my wife in gov job hit immediately career ceiling after marrying me and everyone around her even newcomers kept growing except her, sure just coincidence /s and we both can't still really publicly say what we want because she has there parents and rest of family)