The Ylvainan Inquisition initially planned to hold their tribunal in some dark and underground facility. However, that changed when they were forced to make a lot of concessions in order to ensure the trial could proceed fairly.
For this reason, the trial took place at Kesseling VIII's high court. While the venue was situated in the heart of Krent, the wide-open plazas and avenues around the court building offered enough space for an entire mech regiment.
The Protectors of the Faith came out in force this time. Not only did they assign an entire mech regiment around the court, they also deployed many other units in the neighboring districts. They took security so seriously that they evacuated all of the surrounding buildings beforehand!
The Ylvainan Inquisition deployed their own mechs and troops, but their numbers paled in comparison. They were only there to show the flag at this point.