The first referee is the highest authority of the match officals. He is responsible for the management of the match and all procedures before and after the match. He has the final authority to make decisions. He may make decisions at his own discretion during the match if the incidents are not regulated in the rules.
If any member of the match officials fails to perform his duties properly or, for whatever reason, is no longer able to perform his duties, this person may be replaced by the first referee.
The first referee has the right to communicate with the team captains (if applicable the game captain) of the respective team. On the one hand, he must answer questions about the interpretation of the rules, on the other hand, he can give instructions and issue warnings or sanctions.