- "Good morning. I had intended to state my position on the Anti-Crime Initiative during the city's tribute to the Black Canary, but that speech was cut short. In the intervening days, I have refined my position. Now, I have been reluctant to embrace the A.C.I. because of widespread corruption within our police department, but these 4 officers have shown me and the entire city that there are still good men and women in the SCPD. Today, I am announcing the formation of the Anti-Crime Unit. These four officers will report directly to me, and by working together, we will begin the process of saving our city."
- —Oliver Queen[src]
The Anti-Crime Unit (ACU), also referred to as the Anti-Crime Initiative (ACI), is a joint initiative between the mayor and the Star City Police Department that operates from City Hall. The group reports directly to the mayor as they attempt to enforce the law in Star City.
The anti-crime unit was formed from an initiative put forward to the mayor (presumably by then Captain Frank Pike) which Mayor Queen was unsure about without conducting an inquiry in to allegations of corruption within the Star City Police Department.
Oliver found out there was a bomb wired to the building and they had to come back for the hostages because they could not get down to the hostages because there was a laser tripwire blocking their path. At the recommendation of Quentin Lance, Lieutenant Sam Conahan and 3 other unnamed officers joined a strike team that assisted the Green Arrow in rescuing the other hostages taken at the waterfront. After this Oliver held a press conference to officially announce the formation of the Anti-Crime Unit consisting of those four officers.
- 3 unnamed officers