Shotspotter Data

Michael Topper filed this request with the Department of Emergency Management of San Francisco City and County, CA.


From: Michael Topper

To Whom It May Concern:

Pursuant to the California Public Records Act, I hereby request the following records:

1) A list, database, or comparable record of every alert that has been generated by the department's Shotspotter technology since time of implementation through December 31st, 2020 or the date at which Shotspotter was deactivated-whichever date comes first. For instance, if Shotspotter was implemented in the city on January 1, 2008, I would like all Shotspotter data from this date to December 31st, 2020. The list/database should include, where possible, the date, time, location (address or latitude+longitude coordinates), single or multiple shot distinction, whether the shots were confirmed, police district located, and associated case number for each alert. Please note that previous requests for this infomration have been made and have not redacted the latitude/longitude component. Please do not redact this information.
2) Any document that provides information on the procedure for how the police department should respond to Shotspotter alerts. In particular, I am looking for a document that describes how the police will react to a Shotspotter alert. For instance, if an alert is created, are police dispatched?
3) Shotspotter rollout dates. If the police department rolled out the Shotspotter data by police district, please include the implementation dates attached to each police district.

Please provide me with these public records in a machine-readable ASCII format, such as a CSV, SQL, TXT, or similar raw file. CSV or SQL files are preferred when available. Please email the responsive records to my email address:

The requested documents will be made available to the general public, and this request is not being made for commercial purposes.

In the event that there are fees, I would be grateful if you would inform me of the total charges in advance of fulfilling my request. I would prefer the request filled electronically, by e-mail attachment if available or CD-ROM if not.

Thank you in advance for your anticipated cooperation in this matter. I look forward to receiving your response to this request within 10 calendar days, as the statute requires.


Michael Topper

From: Department of Emergency Management


I wanted to memorialize our conversation from a week or two ago and close the loop. The Department of Emergency Management does not have direct access to ShotSpotter data. The City and County of San Francisco publishes open data that includes '216S' (the designation for calls that were generated due to Shot Spotter activations) located at The locations are masked to the nearest intersection. Unfortunately, for privacy and investigatory reasons, we cannot release a dataset with exact addresses.

Please let me know if you need any further assistance or want to discuss the above data.

James Baird, MPP
Data Manager
San Francisco Department of Emergency Management
1011 Turk Street | San Francisco, CA 94102
Office 415.558.3838

From: Michael Topper


Thanks so much for your help with this request! I really appreciate it. No problem on the location masking—it looks like this is the best that can be done in most cases.

Michael Topper


Hi James,

Thanks for getting back to me with this information. I appreciate the help
and have turned off any automatic replies from MuckRock that you may still
be receiving.



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