Atty. Warren Ko

Atty. Warren Ko

Warren Ko is a lawyer practicing criminal law. Warren received a degree from UC Berkeley SOL Boalt Hall, Berkeley, CA, and has been licensed for 17 years.

San Francisco San Francisco 17 Years Experience 17 year
Call (844) 300-3342

Profile Summary

About Warren Ko at a glance

Warren Ko is a criminal defense attorney based in San Francisco, California. They have 17+ years of legal experience, licensed to practice since 2009. Admitted to practice in California (2009). Educated at UC Berkeley SOL Boalt Hall, Berkeley, CA Stanford Univ, Stanford, CA (—). Serves clients in San Francisco, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Warren Ko is a lawyer practicing criminal law
  • Warren received a degree from UC Berkeley SOL Boalt Hall, Berkeley, CA, and has been licensed for 17 years
  • Warren practices in San Francisco, CA

Practice Areas Explained

Warren Ko's Areas of Practice

Each practice area below reflects the types of cases Warren Ko handles, with a brief overview of what that area of law covers.

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Warren Ko is one of 190,900 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in California →

Jurisdictional Context

Why local counsel matters in California

Practicing law in California. Legal matters in California are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in San Francisco are typically filed in the local municipal court or the appropriate California state district court, depending on subject matter and amount in controversy. An attorney licensed in California brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in California courts without local counsel or pro hac vice admission.

Looking for additional California attorneys? Browse all attorneys in San Francisco or all attorneys in California.

Frequently Asked

Common questions about Warren Ko

Where is Warren Ko's law office located?
Warren Ko's law practice is located in San Francisco, California. You can contact the office directly through this profile page.
What practice areas does Warren Ko handle?
Warren Ko focuses on criminal defense. Each practice area listed reflects experience handling cases of that type in California.
How long has Warren Ko practiced law?
Warren Ko has 17+ years of legal experience and has been licensed since 2009.
Where did Warren Ko go to law school?
Warren Ko earned their education at (—).
How can I contact Warren Ko for a consultation?
You can contact Warren Ko directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Practice Areas

Education

UC Berkeley SOL Boalt Hall, Berkeley, CA Stanford Univ, Stanford, CA
- In Progress

Bar Admissions

California
Admitted: 2009

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