A vice division or vice unit is a department in a police force that investigates public crimes related to narcotics, alcohol, prostitution, pornography and gambling.
Before Season 2[]
Detective Robbie Villanueva spent three years in the Vice Division and one year in Narcotics. He then presented an application to join the Farmington Strike Team.
Season 4[]
After the Strike Team's break up, Shane Vendrell transferred to the Vice Division where he worked with Army Renta as a partner.
Season 6[]
After confessing to the murder of Curtis Lemansky, Shane considered asking for a transfer back into the Vice Division to get away from Vic Mackey.