original_query: What are the responsibilities of the field judge in football?
query: What are the responsibilities of the field judge in American football?
answer: The field judge (or back umpire in Canadian amateur football) works downfield behind the defensive secondary.  They make decisions near their sideline, judging the action of nearby running backs, receivers, and defenders. Responsibilities include ruling on pass interference, illegal blocks downfield, and incomplete passes. They also count defensive players and, in some leagues, run the game clock or determine if field goal attempts are successful (along with the back judge).