Hopefully you don’t play League of Legends to violate the game’s rules and standards of conduct, because if you do, then the game police with their Riot gear (sorry) will come after you. The studio is standardizing its penalty system across the board for professional players, separating infractions into smaller offenses (which go into the League Championship Series Index) and major boo-boos (which are filed under the Global Index). Breaking the rules on the professional level can mean anything from a fine to a permanent ban.
Source: League of Legends, PC Gamer