San Mateo County Sheriff's Office Transparency Portal
This portal provides access to key data and information about our operations, offering insight into our efforts to improve public safety.
We believe a transparent approach to sharing information leads to greater understanding and builds trust among the communities we proudly serve.
In the Transparency Portal, community members will find detailed information on crime and arrest statistics, use of force incidents, data related to our correctional facilities, eviction actions, enforcement of the Three-Foot Bicycle Rule and demographics of the employees of the Sheriff's Office.
We hope you find this dashboard as a helpful resource.
- ADP - Average Daily Population
- Bookings – Individuals newly admitted into custody
- ECW (Electronic Control Weapon) - This refers to devices like Tasers that are considered less than lethal force
- ECW Cycles – each cycle refers to one standard discharge (typically 5 seconds) of the ECW
- Multiple cycles may be administered if the subject does comply after the first
- The number of ECW cycles is an important indicator of force escalation and is tracked for accountability and review
- ECW Effectiveness – This metric refers to whether the ECW achieved the intended effect
- Effective: the subject was incapacitated or compiled after ECW use
- Ineffective: the ecw failed to make contact, had no effect, or the subject resisted or escaped despite deployment
- Electronic Monitoring Program (EMP): --> An alternative sentencing program where eligible individuals serve their sentence outside of a correctional facility under strict monitoring conditions, typically using advanced electronic equipment. Participants must be full time employees, full time students, and/or attend treatment programs. Participants must be recommended for the program by a Court Order.
- 3-Foot Rule – traffic safety law that requires motorists to leave at least three feet of space between their vehicle and a bicyclist when passing from behind
- Originates from California Vehicle code section 21760 that was enacted as part of the “Three feet for safety act” which went into effect on September 16, 2014. It is a part of broader efforts across many U.S. states to protect vulnerable road users like cyclists
- MCF - Maguire Correctional Facility --> primarily houses male incarcerated persons. Since female incarcerated persons are not housed at MCF, only MSCC-based metrics are shown for female ADP and capacity.
- MSCC - Maple Street Correctional Center --> for low to medium risk individuals. Houses both male and female incarcerated persons.
- Racial and Identity Profiling Act (RIPA) also known as Assembly Bill 953:
- Enacted in 2015, AB 953 requires California law enforcement agencies to collect and report data on stops, searches and detentions. These include perceived race, gender, orientation and reason for stop. The goal is to identify and address potential bias in policing practices. For reference, visit the Racial and Identity Profiling Act
- Releases – represent individuals discharged from a correctional facility (due to bail, completed sentence, transfer, etc.)
- RIPA Stop – a stop refers to any interactions where a deputy detains an individual or requests information
- Sheriff’s Work Program (SWP) - An alternative sentencing program allowing eligible individuals to serve their time through supervised community labor rather than traditional full-time confinement in a correctional facility. Participants must be recommended for the program by a Court Order.
- Split sentences – combined incarceration and period of supervised probation
- Straight sentences – only incarceration
Crime and Arrest Data
This dashboard tracks arrest data for the San Mateo County Sheriff’s Office, showing trends by location, gender, race, crime type and NIBRS/CIBRS categories. For additional crime and arrest data, visit our new and improved crime data portal. Community members can search within the portal for crimes by date, location and type of crime. The new CitizenRIMS portal also features an option to receive daily or weekly alerts sent straight to your inbox. To learn more about CitizenRIMS, or to sign up for alerts, click here.
Disclaimer: In an effort to protect privacy, this website does not provide information regarding juvenile offenders, or specific information regarding crimes that are sensitive in nature. Arrests shown in this dashboard are only inclusive of arrests made by the San Mateo County Sheriff's Office and do not reflect arrests made by other agencies in San Mateo County. This dashboard is not inclusive of all the crimes that occur in our jurisdiction, nor does it reflect all reports taken by our agency or the CAD data (incidents reported to dispatch).
Use of Force Data
This dashboard displays data on use of force incidents, including types of force applied, reasons for force and case outcomes. Data includes race, gender, and age, as well as injury rates, criminal charges and geographic distribution of incidents.
Corrections Data
This dashboard tracks corrections statistics including but not limited to population trends with metrics on bookings, releases, residency, race, sentencing and arrests by agency. It highlights changes over time to support transparency and informed decision-making.
Evictions and Three-Foot Rule Data
This dashboard reflects Bicycle Three-Foot Rule reports, showing where and when reported incidents occurred. For more information, or to submit a complaint, please visit our Bicycle Safety page here.
This dashboard also reflects eviction activity in San Mateo County, showing court ordered Unlawful Detainer housing enforcement trends over time.
Racial and Identity Profiling Act (RIPA) Data
This dashboard highlights detailed data on RIPA stops and searches as of January 2023 through current, to include trends by gender, race, city, and reason for stop and outcomes.
Note: All of the RIPA data elements are defined by the California Code of Regulations, not the San Mateo County Sheriff’s Office. For details on specific data values and definitions, please refer the following site: https://oag.ca.gov/ab953/
Employee Demographic Data
The San Mateo County Sheriff’s Office strives to have a workforce that is reflective of the community we serve. In 2023, the Sheriff’s Office joined the 30x30 Initiative, pledging to have 30% of its sworn workforce be women by the year 2030. Data in this portal includes gender, age, race/ethnicity, years of service, military status and bilingual pay status. It provides insight into workforce composition and diversity across both sworn and professional staff.
