Adjudicator
a person who adjudicates: the form of making a final decision, especially in the fact of politics, court or debating.
The adjudicator decided in the debate that the affirming team had won.
adjudicate
To come to a final decision regarding a case or topic.
If you play the same move thrice in a row in chess, the game is adjudicated as a draw.
adjudicated father
Alleged father
He is no longer the adjudicated father of Jennifer