In the Fief of Nonrinoui ruled by an Oligarchy, 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 Embezzlement, his punishment will be Symbol of Death. Cast Permanency, place the symbol so its 60 foot radius crosses the only entrance. Cast Curse on the prisoner to lower their saving throw. This still gives the prisoner a chance at a saving throw, so you will want to target those with naturally poor Fortitude, and this is better as a deterrent than a cell because the desperate will take their unknown-but-poor chances of surviving, sometimes. Substitute other Symbols to create other defenses in the prison.

Fief - Land or office granted to a vassal. Ownership is technically still with the granting lord, but revenue and production is given to the vassal. The lord technically retained the right to seize the land in case of disloyalty.
Oligarchy - Oligarchy is a form of government where political power effectively rests with a small elite segment of society (whether distinguished by wealth, family or military powers).
Trial by combat - Fight to the death, winner is innocent