If I understand LH has severe psycho analytical tests for candidates; or perhaps it is a general German system. Either way, if Lubitz was passed as suitable it doesn't say much for accuracy the system. Or am I missing something?
Yes. The system is designed to find an applicant with the right set of soft and hard skills as well as the right personality profile. And there are specially trained pilots in the process, it is not only the psychologists. However, the whole thing is not designed to test for mental illness.