When you're facing criminal charges in Los Angeles County, your freedom, reputation, and future are at stake. You need an experienced Los Angeles criminal defense attorney who knows the courthouses, the prosecutors, and the strategies that win cases.

At Poseidon Defense A.P.C., we defend clients against misdemeanor and felony charges throughout Los Angeles County—including Beverly Hills, Santa Monica, Westwood, Hollywood Hills, Pasadena, Glendale, and Long Beach. We appear in Los Angeles courthouses and fight aggressively to protect your rights.

Call or Text for a FREE Consultation: (657) 255-6455
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We do not simply process cases. We prepare every case with the expectation that it may need to be fought in court. Prosecutors negotiate differently when they know defense counsel is prepared, strategic, and ready for trial.

Geronimo Gutierrez IV previously served as a Los Angeles County Deputy Public Defender, where he represented individuals facing serious criminal charges and developed firsthand courtroom experience in one of the busiest criminal court systems in the country. That experience provides critical insight into how cases are charged, litigated, and defended in Los Angeles County.

We understand how criminal cases move through Los Angeles County courts and how to tailor a defense strategy to the local system. Familiarity with courthouse procedure, local practice, and courtroom dynamics can make a meaningful difference in the outcome of a case.

Arrests, warrants, and investigations do not happen on a schedule. We are available around the clock to respond quickly, explain your options, and begin protecting you immediately.

We proudly serve Spanish-speaking clients and families throughout Los Angeles County and Southern California.

Every case matters. Our goal is always to position your case for the best possible result—whether that means dismissal, diversion, reduced charges, avoiding custody, or winning at trial.

We defend clients facing a wide range of criminal charges in Los Angeles County, including:

• First-time DUI
• DUI causing injury
• Felony DUI
• DMV license suspension hearings
• Commercial driver DUI
• Underage DUI

• Domestic battery
• Corporal injury to spouse or cohabitant
• Criminal threats
• Child endangerment
• Restraining order violations

• Drug possession
• Possession for sale
• Drug transportation
• Fentanyl charges
• Methamphetamine cases
• Cocaine and heroin charges

• Shoplifting and petty theft
• Grand theft
• Burglary
• Robbery
• Identity theft
• Embezzlement

• Fraud
• Forgery
• Credit card fraud
• Insurance fraud
• Embezzlement
• Money laundering

• Assault
• Battery
• Assault with a deadly weapon
• Attempted murder
• Murder and manslaughter
• Gang-related allegations

• Sexual assault
• Rape
• Lewd conduct allegations
• Child pornography allegations
• Sex offender registration issues

• Federal drug trafficking
• RICO
• Federal fraud
• Federal gun charges

• Felon in possession
• Carrying a concealed weapon
• Assault with a firearm
• Illegal firearm possession or sales

• Juvenile delinquency matters
• Diversion options
• Sealing juvenile records
• Transfer-to-adult-court defense

• Expungements
• Early termination of probation
• Certificate of Rehabilitation
• Resentencing
• Appeals and post-conviction motions

We handle criminal matters in Los Angeles County courts, including:

• Airport Courthouse
• Beverly Hills Courthouse
• Burbank Courthouse
• Clara Shortridge Foltz Criminal Justice Center
• Compton Courthouse
• Glendale Courthouse
• Long Beach Courthouse
• Pasadena Courthouse
• Pomona Courthouse
• San Fernando Courthouse
• Santa Monica Courthouse
• Torrance Courthouse
• Van Nuys Courthouse
• West Covina Courthouse

Knowledge of local procedure, filing practice, and courtroom expectations helps us move quickly and strategically on behalf of our clients.

The early stage of a criminal case often matters the most. We move quickly to assess the allegations, protect your rights, and identify opportunities to limit the damage before the prosecution gains momentum.

We do not rely solely on the police report. We review body camera footage, witness statements, digital evidence, timelines, and physical evidence to identify weaknesses and inconsistencies in the government’s case.

Not every case should resolve the same way. Some cases should be pushed toward dismissal, some toward reduction, and some toward diversion. We tailor strategy to the facts, the court, and your long-term goals.

Cases are strongest when they are prepared as though they will be tried. That preparation gives us leverage in negotiations and puts us in a stronger position if the matter must be litigated before a judge or jury.

We challenge illegal searches, unlawful detentions, unreliable statements, weak charging decisions, and insufficient evidence. A strong motion can reshape the case—or end it.

Past results do not guarantee future outcomes. Every case depends on its own facts, evidence, and circumstances.

• Petty Theft Diversion Granted
  Dismissed and sealed
• Avoided Mandatory Penal Code 290 Registration
  Prosecution changed charge
• Avoided Prison in Penal Code 245 Case
  Credit time served

“Excellent communication and availability. Walked me through each step and took care of everything.”

“Geronimo was absolutely the best and made a hard time in my life as smooth as possible.”

“Best lawyer in town, Geronimo is professional, friendly and effective. Got me out of doing jail time 10/10 recommend.”

“An exceptional attorney—sweet, compassionate, and truly dedicated. Jerry made us feel supported every step of the way and handled our case with care and professionalism. His friendly, approachable manner is a plus. We’re grateful for his help and will absolutely seek his services again. Highly recommend Jerry’s services.”

“Mr. Gutierrez did an outstanding job for us. He was very knowledgeable, thorough, and patient with our questions. He explained all steps and procedures. We would definitely use him again if needed.”

“I recently had one of the most positive experiences with Mr. Gutierrez, as he helped me out with a school research project regarding attorneys. He gave excellent insight and feedback. He is an awesome and responsive attorney. It is clear that he holds such pride and…”

Geronimo Gutierrez IV is the founder of Poseidon Defense A.P.C. and a criminal defense attorney representing clients throughout Los Angeles County, Orange County, and San Diego County.

Geronimo previously served as a Los Angeles County Deputy Public Defender, where he represented clients facing serious misdemeanor and felony allegations. His experience inside one of the largest public defense systems in the country helped shape the practical, aggressive, and client-centered approach he brings to every case.

• 2025 – Harvard Kennedy School of Government
  Certificate in Constitutional Foundations, HarvardX
• 2020 – Thomas Jefferson School of Law
  JD – Juris Doctor
• 2017 – California State University, Fullerton
  BA – Bachelor of Arts – Political Science
• 2013 – Fullerton College
  Associate of Arts – Political Science

Geronimo Gutierrez IV believes every client deserves honest guidance, responsive communication, and a defense built around the real facts of the case—not assumptions in a police report. He approaches each case with urgency, preparation, and a commitment to protecting his clients’ futures.

Fees depend on the nature of the case, the seriousness of the charges, and how much litigation is required. We offer confidential consultations so you can understand the charges, likely next steps, and the scope of representation.

Remain silent, do not consent to searches, and contact a criminal defense attorney immediately. Do not discuss your case with police, cellmates, or anyone else before speaking with counsel.

Yes, depending on the facts. Charges may be challenged through motion practice, factual investigation, negotiation, diversion, or at the preliminary hearing stage. Early intervention often creates the best opportunity for dismissal or reduction.

It depends on whether the matter is a misdemeanor or felony, whether the case is being investigated or already filed, and whether it resolves early or proceeds toward trial. Some cases resolve in weeks; others may take many months.

A misdemeanor is generally punishable by up to one year in county jail. A felony carries more serious consequences, including potential state prison exposure, higher fines, and more severe long-term consequences.

Not every case results in jail or prison. In many cases, there may be opportunities for diversion, probation, treatment-based outcomes, reduced charges, or credit time served. The facts of the case and the defense strategy matter.

Arraignment is usually the first court appearance after charges are filed. The court advises you of the charges, you enter a plea, and issues such as bail, release conditions, and future court dates are addressed.

In many cases, yes. Depending on the outcome of your case, you may be eligible for expungement or other post-conviction relief. Eligibility depends on the type of conviction, whether probation was completed, and other factors.

If you or a loved one is facing criminal charges in Los Angeles County, contact Poseidon Defense A.P.C. for a confidential consultation. Early action can make a major difference in the outcome of your case.

Call or Text: (657) 255-6455
Office: 1440 N Harbor Blvd #260, Fullerton, CA 92835
Website: PoseidonDefenseLaw.com
Email: PoseidonDefenseLaw@gmail.com
Se Habla Español

This content is for informational purposes only and does not create an attorney-client relationship. Every case is unique. For legal advice tailored to your specific circumstances, contact a qualified California criminal defense attorney.