Oblivion:Corruption and Conscience

Quick Walkthrough
# Learn of the corruption in the guards, and speak to Llevana Nedaren to help fight it.
# Nedaren points you to Garrus Darelliun, who will direct you to Aldos Othran when asked about Ulrich.
# Speak with Othran, and he'll have an altercation with a guard in which he is killed.
# Leave, and speak with Llevana who tells you to bring Ulrich to her.
# Before you bring Ulrich to Llevana, speak with Garrus for an alternate method.
# Decide which method to take.
# When Ulrich is dealt with, you receive your gold and single fame/infamy point.

Detailed Walkthrough
Corruption
thumb|Aldos Othran's house
The corruption started when the new captain of the guard, Ulrich Leland, arrived in Cheydinhal. Ask about "Rumors" in Cheydinhal and you'll learn the topic "Fines." Ask about the exorbitant fines and you'll be directed to the outspoken Llevana Nedaren to help fight the corruption. She tells you to seek out Garrus Darelliun in the Count's Castle. When you talk to him, ask him about Ulrich. You'll need a disposition of at least 60 with him before he'll tell you anything. Garrus tells you that he needs a witness to be able to bring the case before the Count. He directs you to Aldos Othran, a local drunk that lost his house after being unable to pay the various fines imposed on him by Ulrich.

Deal with Ulrich
Save your game, as there is a possible bug that can happen here. After you mention Ulrich to Aldos, he tells you to follow him. He walks up to his house and starts berating a guard. After a short discussion he pulls a knife and the guard kills him. Your quest journal now indicates that you need to talk to Llevana again. After you talk to Llevana she snaps and tells you to bring Ulrich to her. She tells you to inform him that she has "information that incriminates him" and she'll "take care of him" when he arrives. Before you talk to Ulrich, visit Garrus again. He proposes an alternate plan; you are to sneak into Ulrich's quarters (located in the Cheydinhal Castle Guard Barracks), and look for evidence to use against him. Garrus gives you a key and your journal indicates that you need to choose between the two methods. Both methods will yield one Fame point.

Garrus' Method
If you pick Garrus' method, you find a note in Ulrich's room (on top of a book on top of the dresser to the right as you enter) that shows he's been sending huge sums to his family and basically milking the town. Give this note to Garrus, and he runs off to the Count and tells you to meet him in the Cheydinhal Bridge Inn in two hours (possible bug triggering can happen now, see Notes section below for Bug Alert #4). When you meet Garrus at the inn he thanks you for your help and gives you a level dependent (see below) amount of gold. Ulrich is incarcerated in the town dungeons indefinitely. Garrus is then promoted to Captain of the Guard.

Llevana's Method
If you pick Llevana's method, lead Ulrich to her house. Inside, they talk for a bit, then she paralyzes him and summons two Tunnel Rats to eat him. Once he's dead your journal is updated. Talk to Garrus, who admonishes you for choosing bloodshed but gives you a level dependent amount of gold since you acted for the good of Cheydinhal (less gold than if you choose the non-violent method). You can loot Ulrich's body for free though. Llevana goes to jail, and Garrus gets promoted to Captain of the Guard.

Your Own Method
There is a third option that neither Llevana nor Garrus would have dared to suggest: seek justice by your own hand. At this stage, slaying Ulrich yourself will complete the quest. Speaking to Garrus afterwards will result in him berating you for such a murderous choice and you will get no gold. Depending upon how Ulrich dies, you risk a bounty or jail time for your action.
This result will occur if Ulrich dies by any means other than Llevana's trap. Methods such as poisoned apples, Frenzy-induced attacks, or dying during the Defense of Bruma will earn you no criminal bounty. Nevertheless, Garrus will still say you murdered Ulrich in cold blood.

Reward


Notes
The "heavy fines" are also associated with any bounties you receive. All fines are increased to 150% of the bounties listed on the Crime page.
You can either find the incriminating note, or lead Ulrich to his doom; you can't do both. If you find the note, you will not be able to talk to him, (and the green quest marker disappears), and if you let the rats have their way with him, the note doesn't appear on the dresser.
You can also complete this quest an alternate way. After speaking with Garrus, do not speak with Aldos as directed; instead, go and kill Ulrich. Then speak with Garrus again to complete the quest. This way, Aldos technically does not die—but after you complete the quest, he vanishes from the game.
One way of skipping a small part is by casting a Frenzy spell on Aldos. He will unsheathe his weapon and guards will come and kill him, regardless of where he is or if he attacks anyone. It will then come up with the dialogue saying that he approached his house and was killed by the guard there. You can do this before you have even talked to Llevana Nedaren, but you must have started the quest.
If you're planning on following the Main Quest then you might want to delay starting Corruption and Conscience until after the Defense of Bruma. This will ensure that Ulrich is dispatched to help in this major battle before you get him arrested or killed. Ulrich can be a useful soldier in the battle since he is essential and cannot be killed.
Providing that you did not kill Ulrich Leland yourself, you will be able to visit Ulrich or Llevana in prison, depending on how you completed the quest.
If you drop the key Garrus gave you before giving him the evidence, you can pick it back up afterward.
If You follow Ulrich to his meeting with the count he will only say, "I must speak to the count."

Bugs
 
 
 When you are outside of the Cheydinhal Bridge Inn bring up the console and type the following command:   . Then go to the Bridge Inn; Garrus should be here. Do this only if you reached stage when quest points to Bridge Inn but Garrus missing.
 Another way of fixing this bug is by waiting the 2 hours then, if you do not receive a quest update saying that 2 hours have passed, use the command   in console to advance the quest to that notification.  Then, from any location, type the following commands:   and  .  This will cause Garrus to appear next to the player stating he has returned from talking to the count. the player can now talk to him and complete the Quest.
 
 
 If this happens, try the following console commands to fix it:   and then   . This will kill Aldos Othran and allow the quest to continue.
 
 
 
Save before you speak to Aldos. If you encounter this bug, reload. Don't speak to him. Cast a Frenzy spell on Aldos while he is standing on the bridge near his house (around 10:30am). He will draw his dagger and a nearby guard will rush in and kill him. Then the dialogue for the next part of the quest will pop up ("He had led me to his old house, where he exchanged heated words with the guards...."). Now you can complete the quest as normal.
 
 

Journal Entries