Mention any five duties of a referee during the game.

1. Enforces the rules of hockey and takes the decisions during the match. 2. Starts and stops the game with the whistle. 3. Awards free hits, penalty corners and penalty strokes for offences. 4. Keeps the time and records the goals scored (with the timekeeper and scorer). 5. Cautions or suspends players who commit misconduct, with a green, yellow or red card.