CS:GO's Overwatch Program
This was implemented by CS:GO and allowed players who had completed a number of ranked games/matches to review videos of reported matches and vote to pass judgement on the player that was reported. Doing this with League wouldn't be that difficult and would result in players moderating players accurately because as you get judgments wrong in CS:GO you got to review less cases. This would help people feel more involved in the moderation process and less helpless when it comes to dealing with negative players. The current punishment system feels very hands-off with an extreme lack of player involvement. The Tribunal wasn't perfect but there sure was a lot less of the b.s. than there is today. Just my opinion and idea though folks.
I really hope I rioter sees this and gives some thoughts on it.