Good day, I have few questions regarding indoor hockey that I would like to clarify; 1. When a PC is completed, can a defender still wear a face mask outside their defending half. i.e. A defender saved a shot during a PC and he counters attack which resulted a goal. I don't see the face mask has given any advantage but I can't find it in the rules book either. Your view? 2. Can an attacker drill into a Goal Keeper or a player with GK privilege? 3. 3 Metres umpire's Signal - Some umpires extend one arm straight up in the air showing an open hand with all fingers extended and some of them just indicate with 3 fingers extended. Which is correct? does it matter? 4. When the ball travels over the side-board in the circle: Is the play restarted one metre outside the circle and one metre from the side-board or three metre outside cricle and one metre from side board? I was watching some videos online and seeing some umpires start at the dotted line (3M) outside circle and 1M from side board.. Thanks.