This table shows all 911 police emergency response and officer-initiated calls for service in the City of Detroit between January 1, 2016 and September 20, 2016. Emergency response calls are the result of people calling 911 to request police services. Officer-initiated calls include traffic stops, street investigations and other policing activities (such as observing crimes in progress) where police officers initiate the response. The table includes all calls taken and reports intake, dispatch, travel, and total response and call times for those calls serviced by a police agency. The data also includes the responding agency, unit, call type and category and disposition of each call.

The location data is provided to the block-level by anonymizing the last two digits of the incident address and offsetting the longitude/latitude coordinates by 100 feet. The times are presented in fractional minutes (e.g., 1.5 min = 1 min 30 secs).

For data after September 20, 2016, go to https://data.detroitmi.gov/Public-Safety/911-Calls-for-Service/t3yi-zyb8. Please note that DPD launched a new system to collect 911 call data on that date, and certain fields of information may not be appropriate to compare between the two systems. Both systems were used to receive calls on September 20, 2016, so neither dataset is inclusive of all calls received on that day.

Should you have questions about this dataset, you may contact the Commanding Officer of the Detroit Police Department's Crime Intelligence Unit at 313-596-2250, or CrimeIntelligenceBureau@detroitmi.gov.

Field Description
Callno - text - Unique ID in Computer Aided Dispatch system
Agency - text - Responding law enforcement agency assigned to the call
Priority - numeric - Numeric priority assigned to call
Anonymized Address - text - Location of call or incident (see Note on Anonymized Addresses for more information)
Call Code - text - Numeric call code/type
Call Description - text - Type of offense described in the call
Category - text - Type of offense described in the call, categorized
Call Date - date - Date of call
Call Time - text - Time of call
Call Code - text - Numeric call code/type
Offense Category - text - Type of offense described in the call, categorized
Short Description - text - Abbreviation of Full Description
Full Description - text - More detail about the offense described in the call, entered in by call-taker
Disposition - text - Action taken as a result of response to the call
Precinct SCA - text - DPD Precinct Scout Car Area
Responding Unit - text - Car code of responding unit
Officer Initiated - text - Y/N - Whether police run was initiated by officer, rather than 911 call
Intake Time - numeric - Minutes for call intake up until handoff to dispatcher
Dispatch Time - numeric - Minutes elapsed from handoff until first unit is dispatched
Travel Time - numeric - Minutes elapsed from dispatch to unit on scene
Total Response Time - numeric - Minutes elapsed from call dispatch to call close time
Time On Scene - numeric - Minutes elapsed from unit on scene to call completed
Total Time - numeric - Minutes elapsed from call created to call close time
Longitude - numeric - X coordinate (see Note on Anonymized Addresses for more information)
Latitude - numeric - Y coordinate (see Note on Anonymized Addresses for more information)

Note on Anonymized Addresses:
Please note that the anonymization process for this dataset is different than for the 911 Calls dataset for calls placed after September 20, 2016. For more information about anonymization for that dataset, read the metadata here: https://data.detroitmi.gov/Public-Safety/911-Calls-for-Service/t3yi-zyb8.

The anonymization process systematically takes the point of the original XY coordinates and places them randomly within a 100 buffer of the original point. The XY coordinate fields provided in this dataset are the new, anonymized location. To mask the address field where there is a street number provided by the caller, the last two digits of the address field are removed and replaced with “XX.”