Answer
The Closer first started airing in 2005 on TNT. It is a crime drama series that follows the life of Deputy Chief Brenda Leigh Johnson (Kyra Sedgwick), who is the head of the Major Crimes Division of the Los Angeles Police Department. The series is based on the real-life experiences of Brenda Leigh Johnson, who was the chief of the Major Crimes Division of the LAPD from 2000 to 2009.