In the County of Pointi ruled by a Syndicate, a character must undergo a Trial by combat.
He has been framed by A cult or brotherhood - bound by a mission and code - and if found guilty of Murder, his punishment will be Trap the Soul. Put the prisoner into a gem. Break the gem when the sentence finishes. Note the gem must have a value based on how powerful the prisoner is, but the type and shape of the gem remains up to you. Perhaps those glowing red gems in the horned demon statue’s eyes have more than just good market value….

County - The land ruled over by a count (or earl, in some areas).
Syndicate - A trade union where the workers democratically run the system or the manager is elected from amongst the workers.
Trial by combat - Fight to the death, winner is innocent