Glossary of Terms: Red Ball

Definition: A high profile case that needs as much resources as possible thrown at it
Usage: Homicide, The Wire

Glossary of Terms: CI

Definition: Abbreviation for Confidential Informant
Usage: The Wire, The Shield
Similar Terms: Snitch, Rat

Not to be confused with: CO - Corrections Officer.

Glossary of Terms: Un-Sub

Definition: Short for Unknown Subject. Meaning the person who is being profiled.
Usage: Most episodes of Criminal Minds.
Related Terms: Perp (short for perpetrator) as used in Law & Order series