|“||I told you I wasn't a ciminal...but I also told you I was desperate!||„|
|~ Lisa to Lance, with the Green Arrow as hostage|
Liza Victoria Warner is the corrupt leader of the Rogue Anti-Vigilante Task Force which she now uses to intercept drug deals and sell the drugs herself.
She is a minor villain in the fourth season of Arrow.
Having studied Criminology at the Starling City university she became a cop.
In 2012 she became part of the Task Force that was created to take down the vigilante archer known as The Hood.
At some pont she and the Anti-Vigilante Task Force stopped believing that Star City could still be saved. To be able to provide for their familys they interceptd drug deals and later sell the drugs themselves.
At one occasion they arrive at a deal and kill all the dealers, however they are disturbed when two police detectives arrive after they got a tip. Believing the Task Force to be on their side, the detectives put down their guns and are immediately shot by Liza. On the ground one of them manages to return fire and shoots off Liza's walkie talkie before she kills him.
After the bodies have been found the Green Arrow and his team use the SIM card from the walkie to triangulate Liza's location. The card leads them to an adress where they find the armory of the Task Force. Having found out that the killers are no gang members but policemen, Oliver informs Captain Lance and tells him that they will stage a drug deal to capture Liza. Lance demands to be present too, as it are cops who are responsible. At the deal, a fight erupts when the Task Force arrives. Liza fights Laurel and is able to defeat her but is shot into the shoulder by Arrow. The Task Force retreats with the drugs but Lance is able to get a glimpse at Liza and recognizes her.
After the escape the Task Force plans what to do with Lance as he knows that they are cops. Some members plan to kill him but Liza states that they are no criminals who kill fellow policemen in cold blood. When one member says that Lance will still be a problem Liza responds that he is the answer.
They capture Lance when he leaves Laurel's apartment and use him to gain entrance to the facility where the GCPD stores the taken drugs before destroying them. They plan to steal the drugs form there and to leave town afterwards but Team Arrow intervenes. The Green Arrow manages to tie Liza up but she secretly cuts herself free and stabs him into the side before using a garotte to take him hostage, telling Lance that she will sever his spinal cord if he moves. However, Lance is able to talk her out of it and she surrenders herself. She is then arrested by Lance.
Liza was a highly motivated cop. However as the city got wasted she lost her faith in the city and started a criminal gang with the goal of making money by taking it from criminal gangs.
As a former police officer and member of the Task Force Liza had received highly advanced training. Her fighting skills allowed her to easily defeat The Black Canary in hand to hand combat. A expert with knives and firearms she was able to injure the Green Arrow with a throwing knive and take him hostage.