San Mateo County recently launched an inmate locator tool to make it easier for people to find and track others. (Courtesy San Mateo County Sheriff’s Office)

San Mateo County recently launched an inmate locator tool to make it easier for people to find and track others. (Courtesy San Mateo County Sheriff’s Office)

San Mateo County launches tool to let residents search for incarcerated loved ones online

When Bay Area resident Robert Bisno learned his ex-girlfriend was arrested in Georgia earlier his year, Bisno had no way of contacting her or verifying the status of her incarceration.

The lack of information available about her arrest was particularly troubling because his ex-girlfriend has struggled with mental health issues, including suicide attempts.

“Nobody could even tell me if she was alive or dead,” Bisno, 34, recalled.

Bisno said he eventually learned his ex-girlfriend was incarcerated and awaiting trial, but only after receiving help from a former inmate who knew how to navigate the jail system.

But Bisno’s challenge in locating an incarcerated loved one is by no means an isolated incident.

That’s why the San Mateo County Sheriff’s Office has launched a new online inmate locator tool, designed to make it quicker and easier to learn the status of individuals who might have been arrested or incarcerated in San Mateo County.

The inmate locator is intended for residents who have incarcerated family members, said Sheriff’s Office spokesperson Salvador Zuno. He noted crime victims who want to keep track of individuals who victimized them could also use the new tool.

Most arrestees will appear in the online database within one to two hours of being arrested, Zuno said. Those requiring medical attention might take longer to be entered into the system.

The locator tool appears to reliably find inmates with as little information as a first initial and last name, according to testing conducted by the San Francisco Examiner. However, spelling errors can prevent an inmate from showing up in search results.

The new system allows users to avoid phone inquiries and potentially lengthy hold times, Zuno noted, and it also reduces the number of residents making in-person inquiries.

“In any 24-hour period, we’ll get hundreds of guests in our lobby asking about their family members,” Zuno said. “By allowing some of those people to access the information online, this tool gives jail staff more one-on-one time with those guests who need it.”

Helping family members to stay connected with inmates can aid rehabilitation and reduce recidivism, Zuno said.

Criminologist Marina Bell agreed contact between inmates and their friends and relatives outside jail can be crucial.

“The research demonstrates one of the strongest factors for people being successful at reentry and avoiding recidivism is having a positive support network, and if that’s how this new tool is used, I would say that’s progress,” Bell said.

But Bell noted the tool could have some drawbacks. Making personally identifiable incarceration data so readily available, for instance, could further marginalize current and former prisoners, she said.

“I think the intent sounds excellent,” Bell said. “But I would have concerns about how else it might be used, and by whom, and what their intent might be.”

Zuno noted the database contains no sensitive private information, and only allows users to access data that is already a matter of public record. That information includes an inmate’s location, pending charges, custody status, next court date and bail, if applicable.

To enquire about the status of a prisoner, visit or call (650) 363-4000, ext. 6070.

If you find our journalism valuable and relevant, please consider joining our Examiner membership program.
Find out more at

Just Posted

Police seized ghost guns and other firearm manufacturing items while executing a warrant in February (Courtesy SFPD)
Ghost guns linked to rise in SF shootings as numbers jump

San Francisco police are seizing an increasingly alarming number of untraceable firearms,… Continue reading

San Francisco Giants pitcher Gregory Santos (78) makes his major league debut against the Marlins in the 6th inning at Oracle Park on April 22, 2021 in San Francisco, California. (Photography by Chris Victorio | Special to the S.F. Examiner).
Giants post fifth shutout of 2021, all caught by Casali

After going the entirety of 2020 without shutting out an opponent, the… Continue reading

Shock G of Digital Underground performs during the BET Hip Hop Awards '10 at Boisfeuillet Jones Atlanta Civic Center on October 2, 2010, in Atlanta. (Taylor Hill/Getty Images/TNS)
Rapper Shock G of Digital Underground found dead in Tampa

Rapper Shock G, who was famous for the hit single “The Humpty… Continue reading

Students walk around campus near the Cesar Chavez Student Center at San Francisco State University. (Steven Ho/Special to S.F. Examiner)
California’s massive UC and Cal State systems plan to require COVID-19 vaccinations this fall

Nina Agrawal, Teresa Watanabe, Colleen Shalby Los Angeles Times The University of… Continue reading

From left, Esther Gulick, Sylvia McLaughlin and Kay Kerr started launched one of the country’s first environmental movements. (Courtesy Save The Bay)
Sixty years of Saving San Francisco Bay

Pioneering environmental group was started by three ladies on a mission

Most Read