Sit in Judgment

Sit in Judgment is a side quest in Dragon Age: Inquisition.

"Someone being held in Skyhold awaits judgment."

Acquisition
Once the Inquisitor has gained Skyhold, they must leave once and return in order to trigger this quest. After the first prisoner is judged, the quest triggers every time a new prisoner is captured.

Walkthrough
The judgment options and outcomes are outlined below for each prisoner the Inquisitor may capture. Sit on the throne in the main hall to begin a judgment.

Main quest judgments
These judgments become available through completing portions of the main quest line. The specific quest is noted in the description of each judgment:

Magister Gereon Alexius
Captured as part of the In Hushed Whispers quest. Judged for his crimes of apostasy, attempted enslavement, attempted assassination (of the Inquisitor).

Knight-Captain Denam
Captured as part of the main quest Champions of the Just. Judged for his crimes of wilfully corrupting his fellow templars with red lyrium, betraying the order, (and murdering the Knight-Vigilant if it was discovered).

Grand Duchess Florianne de Chalons
Captured as part of the main quest Wicked Eyes and Wicked Hearts quest. Judged for crimes against Orlais and Empress Celene

Magister Livius Erimond
Captured as part of the main quest Here Lies the Abyss.

Ser Ruth
Turned herself in after Here Lies the Abyss. Asked to be judged for her crime of murder,(abetting in a blood sacrifice).

Samson
Captured as part of the main quest What Pride Had Wrought if In Hushed Whispers was also completed. Judged for his crimes while in the position of accomplice/general to Corypheus and being a traitor to the Templar Order.

Side quest judgments
These judgments become available through completing specific side quests. The quest required is noted in the description:

Captain Thom Rainier
Captured as part of the Revelations companion quest and either the war table operation Rainier's Release: An Alternative or Thom Rainier's Fate. Judged for his crimes of murder, treason, and impersonation.

Chief Movran the Under
Captured as part of the Lost Souls quest. Judged for his crime of attacking Skyhold with a goat in retaliation for his son's death.

Mayor Gregory Dedrick
Captured as part of the Still Waters side quest and after the Find Crestwood's Mayor war table operation. Judged for his crimes of purposely drowning a number of citizens in Old Crestwood during the Fifth Blight

Crassius Servis
Possibly captured at the conclusion of the quest The Trouble with Darkspawn in the Western Approach. Judged for his crimes: working for Corypheus, apostasy, and smuggling.

Mistress Poulin
Judged for selling the quarry in Emprise du Lion to the Red Templars and continuing to take their gold even after finding out that they were growing red lyrium there. Her judgment is triggered by the Rocky Rescue quest.

Storvacker
In the Jaws of Hakkon DLC, after completing Storvacker Caged, Guests of the Hold and Hakkon Wintersbreath, The Inquisitor will be asked by Thane Svarah Sun-Hair to sit in judgment of the Hold-Beast Storvacker, as, in the Avvar manner, she should have perished before allowing herself to submit to capture and imprisonment by the Jaws of Hakkon. The trial takes place in Stone-Bear Hold rather than Skyhold.

Non-judgments
The Inquisitor will preside over these events like they would a judgment but they are technically not judgments.

Promotion of Ser Delrin Barris
Completing the war table operation Investigate Man Accused of Abomination will allow you to promote Ser Barris to the rank of Knight-Commander of the Templar Order. He earns his promotion after saving Val Colline from the Venatori, breaking a siege of demons in Ansburg, and stopping a mob from attacking a mage without raising his sword. This is only available if you completed Champions of the Just by making the Templars your allies.