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Carlos C. Martinez

Associate

Carlos Martinez focuses his practice on complex litigation matters. Before joining Keker, Van Nest & Peters, Carlos clerked for Judge Arianna J. Freeman of the U.S. Court of Appeals for the Third Circuit and Judge Juan R. Sánchez of the U.S. District Court for the Eastern District of Pennsylvania. 

Carlos earned his law degree from Harvard Law School, where he participated in the Criminal Justice Institute and represented indigent clients accused of crimes. As part of that clinic, he first-chaired a two-day jury trial in Boston Municipal Court and obtained a full acquittal for his client. He also served as a student attorney and training director with Harvard Defenders and an editor with the Harvard Civil Rights-Civil Liberties Law Review. Carlos interned at the ACLU of Northern California, the Federal Public Defender for the Northern District of California, Rights Behind Bars, and the MacArthur Justice Center. Prior to law school, he worked as a defense investigator for the Neighborhood Defender Service of Harlem in New York and the Habeas Corpus Resource Center in San Francisco.  

He earned his bachelor’s degree magna cum laude from Santa Clara University, where he studied political science.

Carlos Martinez focuses his practice on complex litigation matters. Before joining Keker, Van Nest & Peters, Carlos clerked for Judge Arianna J. Freeman of the U.S. Court of Appeals for the Third Circuit and Judge Juan R. Sánchez of the U.S. District Court for the Eastern District of Pennsylvania. 

Carlos earned his law degree from Harvard Law School, where he participated in the Criminal Justice Institute and represented indigent clients accused of crimes. As part of that clinic, he first-chaired a two-day jury trial in Boston Municipal Court and obtained a full acquittal for his client. He also served as a student attorney and training director with Harvard Defenders and an editor with the Harvard Civil Rights-Civil Liberties Law Review. Carlos interned at the ACLU of Northern California, the Federal Public Defender for the Northern District of California, Rights Behind Bars, and the MacArthur Justice Center. Prior to law school, he worked as a defense investigator for the Neighborhood Defender Service of Harlem in New York and the Habeas Corpus Resource Center in San Francisco.  

He earned his bachelor’s degree magna cum laude from Santa Clara University, where he studied political science.

Kafka in Court: Bay Area Legal Coalition Pushes Back on ICE Detentions

03/03/2026

In reporting on the status of President Trump’s mass deportation agenda in the Bay Area, the San Francisco Standard covered a series of federal court rulings that rebuke the Department of Homeland Security (DHS) and Immigration and Customs Enforcement (ICE), including three cases brought by Keker, Van Nest & Peters and its nonprofit partners. Read more

Keker, Van Nest & Peters Earns “Shout-Out” For Challenging Inhumane ICE Detention Conditions

02/13/2026

Law.com gave a “Litigator of the Week Shout-Out” to Keker, Van Nest & Peters for its role in securing a preliminary injunction requiring federal immigration authorities to provide constitutionally adequate medical care to people detained at the California City ICE Detention Facility, located in the Mojave Desert. Read more

Keker, Van Nest & Peters Secures Class Certification and Court-Ordered Oversight in Case Challenging Inhumane ICE Detention Conditions

02/13/2026

U.S. District Judge Maxine Chesney ordered U.S. Immigration and Customs Enforcement and the Department of Homeland Security to provide constitutionally adequate medical care, temperature-appropriate clothing and blankets, and meaningful access to legal counsel. The court also required the appointment of an independent monitor to ensure medical care, and it provisionally certified the class, which includes the more than 1,000 individuals detained in the facility, which is run by a for-profit prison company. Read more

Keker, Van Nest & Peters Secures Class Certification and Relief from Inhumane Conditions for People at Cal City ICE Detention Facility

02/10/2026

U.S. District Judge Maxine Chesney has ordered that U.S. Immigration and Customs Enforcement and the Department of Homeland Security must provide competent, consistent, and effective medical care to detainees held in the California City Detention Facility, with an external monitor to be appointed to ensure that medical care meets constitutional requirements. Judge Chesney also ordered ICE to provide detained people with temperature-appropriate clothing and blankets, and to ensure timely and confidential access to legal counsel both in person and telephonically. The decision comes after a November class action lawsuit filed by Keker, Van Nest & Peters, the Prison Law Office, and the ACLU National Prison Project. Read more

Immigrants Suing ICE Over Detention Conditions Get Their Day in Court in San Francisco

02/06/2026

Detained immigrants enduring grim conditions are suing ICE, citing meager medical care, limited access to attorneys, repeated lockdowns, and a ban on contact visits with family, reports KQED. Read more

ICE to Provide Urgent Medical Care for Two Plaintiffs at California City Detention Facility Following Emergency Filing

12/23/2025

Immigration and Customs Enforcement (ICE) agreed yesterday to provide immediate medical care for two individuals being held in the California City Detention Facility, after the individuals filed their petition for emergency relief. The agreement was entered as a court order by the federal judge in San Francisco overseeing the case. Read more

‘I am afraid that I might die here’: ICE detainee fears ‘imminent death’ without lifesaving care, lawyers say

12/18/2025

Amid “inhumane” and “punitive” conditions at California City Detention Facility, a man held in the state’s largest immigration detention center faces “imminent death,” according to an emergency motion filed by Keker, Van Nest & Peters, the Prison Law Office, the ACLU, and the California Collaborative for Immigrant Justice. Another detainee may suffer life-threatening consequences from a long-delayed cancer diagnosis and treatment. Read more

Keker Sues ICE Over Alleged Treatment at California City Facility

11/14/2025

Described as “a river of cruelty,” the California City Detention Facility under ICE is the focus of a new pro bono putative class action filed by Keker, Van Nest & Peters, alongside the Prison Law Office, the ACLU, and the California Collaborative for Immigrant Justice, challenging the inhumane and unconstitutional conditions at California’s largest immigration detention center. Read more

Immigrants Sue Over Inhumane Conditions at Largest ICE Detention Center in California

11/13/2025

Seven people detained by Immigration and Customs Enforcement (ICE) sued the Trump administration over inhumane conditions at the largest immigration detention center in California, the privately owned California City Detention Facility located in Kern County. Read more