External experts, for example external examiners, come into an organization from outside in order to do a particular job fairly and impartially, or to check that a particular job was done properly.
[mainly British]
externallyadverb [ADVERB -ed]
There must be externally moderated tests.
See full dictionary entry for external
external examiner in British English
(ɪkˈstɜːnəl ɪɡˈzæmɪnə)
noun
education, British
an outside examiner who monitors the examinations held in a university or school
External examiners have been quick to notice this trend.