9-1-1 is the appropriate number for these situations. The Gang Book by Chicago Crime Commission 3.83 Rating details 88 ratings 4 reviews This guide and training tool was developed to be of use to the most expert gang investigators, as well as to the parent, educator or business owner who may know little about Chicago metropolitan street gangs. However, the hotlines should never be used to report crimes in progress or other emergency situations. Education and Training Division (ETD) Marine and Helicopter Unit. The hotlines are easy to remember and require only that you leave a message, give information, or state the purpose of your call - all without having to identify yourself or your location. OIG reported that CPD captured, reported, and visualized gang data and gang affiliation designations in at least 18 different forms, records, and systems of. Neighborhood Gang Formation1952C- Note are formed in the West Town neighborhood known as The Patch1952Ted Roe is gunned down by Outfit hit men. These hotlines protect the anonymity of the caller and help simplify the process of reporting crime information. In April 2019, the City of Chicago Office of Inspector General (OIG) published a report on the Chicago Police Department’s (CPD) so-called gang database. That’s why the Chicago Police Department created various telephone hotline numbers as another option for reporting information. For whatever reason, some people may not feel comfortable using either 9-1-1 or the police non-emergency number 3-1-1 to report information regarding crimes.