adjudicator
US /əˈdʒuː.də.keɪ.t̬ɚ/
UK /əˈdʒuː.də.keɪ.t̬ɚ/

1.
arbitro, giudice, perito
a person who makes an official decision about who is right in a dispute
:
•
The independent adjudicator ruled in favor of the claimant.
L'arbitro indipendente ha deciso a favore del ricorrente.
•
She was appointed as the adjudicator for the poetry competition.
È stata nominata giudice per il concorso di poesia.