C31 Unit ? ( From the news article.)
Combined County Criminal Investigations Unit
In existence since 1992, the award winning Combined County Criminal Investigation (C3I) Unit was formed as a cooperative agreement between Allegany County law enforcement agencies.
C3I is comprised of experienced investigators from the Cumberland Police Department, Maryland State Police, Allegany County Sheriff’s Office, Frostburg Police Department, Frostburg State University Police, State’s Attorney’s Office and the Federal Bureau of Investigation. The unit is governed by an advisory board.
C3I also has a narcotics investigations function.