#The Tribunal...
...is the old-fashioned name for League of Legends punishment system.
It is actually an outdated term, because the current system has little to do with the old tribunal system.
The modern term would be "Automated punishment system" or simply "Punishment system". Since that is quite a mouthful, and for "historic" reasons, many players still call it "The Tribunal", myself included.
(Also, you gotta admit, its a catchy term ^^)
The old system included player-participation in terms of actually voting on each and every case, where a majority out-of-5 vote decided wheter or not a player was guilty or not. Every player who ddn't receive a punishment himself, and was above lvl 20, was eligible to participate.
Here is pictures of the (web-broser based) interface of 'ye olde days:
(And yes dear forum experts, I took the time to mask all the names.)
https://s11.postimg.org/jf426svtv/Tribunal_Safe_Pic.jpg
This one shows what the chatlog looked like. Purple is the guy the case is about, green is his team, red the other team:
http://i.imgur.com/KV08uyO.jpg
The "judges" were presented with "cases", each of wich consisted of 3-5 games. The cases were automatically generated by the system, based on reports...basically, a lot of reports = a case was generated and put into the queue, and random judges were assigned to it from the pool of participating players.
Within a case, the "judges" could access the players build, the entire chatlog, as well as read the report reasons, and comments. They then could vote "Punish" or "Pardon", or refuse to vote on the case at all.
You could do a maximum of 20 cases per week.
Hope that clears things up a bit :-)
[slayer-jinx-catface]