Detective Erin Lindsay was a member of the CPD Intelligence Unit, and was the partner of Detective Jay Halstead.
Little is known about Lindsay's early childhood except that her father was in prison and her mother was a drug addict. Lindsay grew up on the street and by the age of 14, she had already been arrested 5 times. The charges included misdemeanor, simple battery, retail theft, solicitation, and unlawful possession of cannabis.
At some point in her early teens, she became Sergeant Hank Voight's CI. Later, Voight took her in and raised her like a daughter. When she was 16, Voight had her enrolled in the St. Ignatius School for a new start, however the girls at the school quickly found out about her past.
She has a close working partnership with Detective Jay Halstead that could develop into something more personal later on. However, Voight has strictly forbidden any non-professional relationship between the two. This is partly due to Lindsay's implied commitment issues stemming from her rough childhood.
Lindsay has compassion for vulnerable young people as she can relate. She tries twice unsuccessfully to get a 17-year-old prostitute and heroin addict, Nadia, to enter rehab. She later succeeds and Nadia now works for District 21 Intelligence as Administration.
In Chicago FireEdit
Lindsay visits Firehouse 51 to warn the firefighters about possible unsavory characters during a blackout. She is first on scene when a thug named Vince Keeler attemps to attack a man at the firehouse. Lieutenant Kelly Severide forces Keeler out and is given a death threat.
Shortly after the blackout, Keeler and his gang kidnap Severide's sister Katie as retaliation. Lindsay is a go-between for updates on the case. Severide beats information about Katie's whereaboutsout of an ally of Keeler's. This results in a successful takedown and reunion between Severide and Katie.
Lindsay talks to Katie in the hospital and it is implied that Keeler beat and raped her. Keeler also manages to use a higher up power in the CPD to be released. This angers both Severide and Otis, Katie's boyfriend. The two begin to plot revenge with two other firefighters. Katie leaves for New York for a fresh start and to be away from Keeler.
Keeler is discovered to be missing, with the keys to his Cadillac in the ignition. Lindsay immediately suspects both Severide and Otis. She runs an investigation of the two but comes up empty. It is implied that Severide and Katie's father, Benny, had possibly murdered Keeler. Voight and Lindsay immediately remove Severide and Otis as suspects.
|Season 2 Appearances|
|"A Problem House"||"Prove It"||"Defcon 1"||"A Nuisance Call"||"A Power Move"|
|"Joyriding"||"No Regrets"||"Rhymes With Shout"||"You Will Hurt Him"||"Not Like This"|
|"Shoved In My Face"||"Out With A Banng"||"Tonight's The Night"||"Virgin Skin"||"Keep Your Mouth Shut"|
|"A Rocket Blasting Off"||"When Things Got Rough"||"Until Your Feet Leave the Ground"||"A Heavy Weight"||"A Dark Day"|
|"One More Shot"||"Real Never Waits"|