The 2014 precinct data provides a comprehensive map of the City of Detroit’s Police Department precincts. The precincts were created by building from the squad car areas dataset published on the City of Detroit’s open data portal in 2014. However, D3 staff revised the precinct geographies to reflect the maps displayed on the police department’s website since the Scout Car Areas didn't line up consistently. It is possible to view each individual precinct boundary and squad car area on the City of Detroit Police Department’s website. This map was created in order to layout the boundaries of each precinct on one map, providing a complete map of all twelve police precincts. This map was created using ArcMap by Alexis Farmer and D3 staff on July 7, 2015.

The Project Green Light Locations data set documents private businesses and other organizations that participate in Project Green Light Detroit, a program started on January 1, 2016 as a partnership between local businesses, the City of Detroit and community groups. Local businesses and organizations that participate in this program have installed real-time camera connections with Detroit Police Department headquarters and visibly communicate their participation to the public through project-specific green lights and signage at each participating location. PGL locations have grown in number and diversity from eight gas stations at the inception of the program in 2016 to include a growing number of retail and service-based businesses, residential facilities such as apartment complexes and nursing homes, and community organizations such as houses of worship. The PGLL dataset records location-level data and includes the business or organization name, address, business type, corresponding police precinct, and the date a location went live with a real-time camera connection to DPD. Records in the data set have been enriched through geocoding to enable us to map address locations. If a business or organization has multiple participating locations, a record for each location is included in the data set.

The RMS Crime Incidents dataset consists of crime reports from the Detroit Police Department Records Management System (RMS). This data reflects criminal offenses reported in the City of Detroit that DPD was involved in from December 2016 to present. Note that records are included in the dataset based on when an incident is reported which could result in an occurrence date before December 2016. Incident data is typically entered into mobile devices by the officer in the field when responding to an incident. Incidents that occurred in Detroit but in a location that is under the jurisdiction of the Michigan State Police (MSP) or Wayne State University Police Department (WSUPD), such as on an expressway, Belle Isle, or around Wayne State University, are included only if the incident is handled by DPD. Such records are reviewed in a monthly audit to ensure that the incidents are counted by one and only one agency (MSP or DPD). This data is updated daily. For each crime incident, one or more offense charges are recorded, and each row in the dataset corresponds with one of these charges. An example could be a domestic assault where property was also vandalized. Offense charges that occurred at the same crime incident share a common incident number. For each offense charge record (rows)details include when and where the incident occurred, the nature of the offense, DPD precinct or detail, and the case investigation status. Locations of incidents associated with each call are reported based on the nearest intersection to protect the privacy of individuals.RMS Crime Incident data complies with Michigan Incident Crime Reporting (MICR) standards. More information about MICR standards is available via the MICR Website. The Manual and Arrest Charge Code Card may be especially helpful. There may be small differences between RMS Crime Incident data shared here and data shared through MICR given data presented here is updated here more frequently which results in a difference in a cadence of status updates. Additionally, this dataset includes crime incidents that following an investigation are coded with a case status of ‘Unfounded’. In most cases, this means that the incident occurred outside the jurisdiction of DPD or otherwise was reported in error. The State of Michigan, through the MICR program, reports data to the National Incident-Based Reporting System (NIBRS).Yearly Datasets for RMS Crime Incidents have been added to the ODP. This is to improve the user's experience in handling the large file size of the records in the comprehensive dataset. You may download each year separately, which significantly reduces the size and records for each file. In addition to the past years, we have also included a year-to-date dataset. This captures all RMS Crime Incidents from January 1, 2025, to present.Should you have questions about this dataset, you may contact the Commanding Officer of the Detroit Police Department's Crime Data Analytics at 313-596-2250 or CrimeIntelligenceBureau@detroitmi.gov.