Slave Snitch

 is an unmarked quest in the Fallout 3 add-on The Pitt.

Walkthrough
At multiple instances where Information can be obtained you can stop by and talk to Brand who is sitting down near the entrance to the mill. He mentions he trades information to Ashur in exchange for time off. He asks the player if they learn anything to pass it along.

Information

 * You are here to free the slaves
 * Wernher and Midea are working together
 * Marco is making weapons (this action will get Marco killed).

Reward
For each piece of info given the player receives 2 stimpaks and 25 XP as well as negative karma.

Bugs
If you have killed Ashur, he will still say that he will report to Ashur with your information, and you will receive negative karma.