eight guards at nauru 's emergency response team found to be contravening a company policy that they display ` cultural sensitivity ' .
a former staffer at transfield wilson security said the guards was seven of whom are former australian defence personnel - ` frequently referred to asylum seekers in their care as the enemy '' ' , the guardian australia reported .
all eight men were pictured posing with former federal mp pauline hanson .
one guard , harley levanic , posted a picture to facebook in february of a new neck tattoo reading .