Should there be a "sunset" provision for any given set of rules / procedures? In other words, should a new "version release" be debated every x period of time? How long? Should the Members have the chance to debate and vote on said "release", causing the site to be more "democratic"? (i.e. Transparency on the legislative side as well as the Judicial.) Also, I don't believe this should preclude minor tweaks or "builds" by the Mod / Admin team in the interim.
I have no particular opinion on this, other than that if a time limit were to be imposed I would want it to be a long time (at least years). These kinds of reform take a lot of time and energy.
Do you want the right to trial? By jury of your peers or by tribunal of the Mods / Admin personnel? How about an "Appeal" process? How would that work, procedurally?
As a practical matter, we often need to shut down a troublesome poster before they can cause more damage. So, like arresting a suspect, posters need to be put into a situation where they cannot cause damage pending any "trial".
One option would be to put banned members into a temporary "limbo" (like a holding cell), in which they could only post to a single dedicated subforum pending their "trial". That subforum could be visible only to moderators, or it could be generally visible. If made generally visible, it would probably be necessary to also impose post-by-post moderation on offenders in limbo, again to avoid them making provocative public statements.
Another option would be that banned posters would not be prevented from posting all together, but would simply be put into a group where all their posts needed to be approved by a moderator before appearing. We could then have a dedicated "trial" forum to hear the case.
All this seems to be a complicated and labour-intensive system, though.
A "trial" would necessarily take time because a "jury" would need to be assembled, then presumably we'd have arguments back and forth. The end result could be that the offender might be in "limbo" far longer than the original offence warranted, pending a trial.