For reference, this is what the courtroom where these trials take place looks like.
The front of the courtroom. The judge sits in the middle of the long desk (facing out of the picture), the solicitors and accused sit at the long table beneath it (facing in to the picture), and the witness currently being examined sits in the stand just behind the railing on the right (facing in to the picture).

The painting up there behind where the judge would sit.

And the entry to the courtroom, what the judge sees when he looks out over the place, or what anyone turning around would see. Armed constables are stationed in the balcony above the doorway.