Micah Was Approached by a Fellow Officer Concerning Possible Corruption

Multiple Choice

Micah was approached by a fellow officer concerning possible corruption within their department.  Apparently, two officers have been selling confiscated drugs on the streets.  Micah reviewed both officers' cases and noticed that their arrests for drug crimes were down significantly. Both officers have also recently been receiving complaints from the community.  Micah dreaded what was about to happen to their department.
Micah most likely works for which unit in the police department?

A) Special Victims Unit
B) Homicide
C) Vice
D) Internal affairs