Hello these are the Quidditch Rules, this topic was last edited on the 28th Of March 2010.
1. Players must not stray over the boundary lines of the pitch, although they may fly as high as desired. The Quaffle must be surrendered to the opposition if any player leaves the boundary. Quidditch matches in the Harry Potter films, however, show players often deliberately flying over the boundary lines and even around the spectator towers.
2. Time out may be called at any time by a team Captain. It may be extended to two hours if a game has already lasted for more than twelve hours. Failure to return to the pitch afterward disqualifies the offending team.
3. The referee can impose penalties if a foul occurs. A single Chaser from the fouled team takes a penalty shot by flying from the central circle towards the scoring area. The opposing team's Keeper may attempt to block this shot, but no other player may interfere.
4. Contact is allowed, but a player may not grasp another's broomstick or any part of his or her body.
5. No substitution of a player is allowed, even if one is too badly hurt to continue
6. Players may take their wands onto the pitch, but they must not be used on or against any players, any player's broomstick, the referee, any of the four balls, or the spectators.
Thanks for reading,
Professor R J Lupin.
Head Master.