About

When facing criminal charges or a Department of Motor Vehicles (DMV) license suspension in Southern California, the standard judicial narrative often gives immense weight to police reports and lab results. However, veteran defense attorney Matthew J. Ruff has spent over 30 years proving that an arrest is merely the beginning of the legal story, not its final verdict.

Exclusively dedicating 100% of his practice to criminal defense, DUI litigation, and DMV administrative hearings, Matthew Ruff has established a reputation across Los Angeles, Orange, and Kern Counties as a meticulous, hands-on trial attorney who routinely dismantles prosecution evidence through scientific precision and constitutional advocacy.

A Core Philosophy: Inside Knowledge & Direct Representation

Unlike high-volume firms that pass clients off to paralegals or junior associates, Attorney Matthew Ruff maintains a strict commitment to direct, one-on-one advocacy. From initial consultations to court appearances and DMV hearings, clients work directly with Mr. Ruff himself.

His edge stems from a foundational background working within one of the largest District Attorney’s Offices in California early in his career. This experience provides valuable insight into the internal mechanics of state prosecution, allowing him to anticipate law enforcement strategies, identify procedural flaws, and negotiate effectively.

Pillars of Defense Mastery

1. Forensic Toxicology and Chemical Evidence

DUI defense is heavily anchored in hard science. As an active member of the National College for DUI Defense (NCDD) and trained in National Highway Traffic Safety Administration (NHTSA) protocols, Mr. Ruff approaches chemical testing with extreme technical scrutiny:

• Rising BAC & Retrograde Extrapolation: Demonstrating through expert toxicological analysis that a client’s blood alcohol concentration (BAC) was below the legal limit at the actual time of driving, despite testing higher hours later during the absorptive phase.

• Title 17 & Lab Compliance: Scrutinizing blood draw procedures, chemical preservatives, and equipment calibration records to challenge the admissibility of lab findings.

• Breathalyzer Mechanics: Identifying technical vulnerabilities in breath-testing hardware, such as mouth alcohol contamination or radio frequency interference.

2. Fourth Amendment Constitutional Litigation

A successful defense often begins before chemical testing ever occurs. Through aggressive Motions to Suppress Evidence (Penal Code § 1538.5), Mr. Ruff regularly challenges:

• Traffic stops initiated without reasonable suspicion or legal justification.

• Unlawful prolonged detentions during routine traffic interactions.

• Improper field sobriety testing protocols and flawed body-worn camera narratives.

3. Administrative DMV License Advocacy

A DUI arrest triggers two distinct proceedings: the criminal court case and the DMV Administrative Per Se (APS) hearing. Reinstating driving privileges requires specialized administrative strategy. Matthew Ruff has achieved an exceptional track record setting aside license suspensions, even in complex “refusal” allegations where law enforcement failed to administer mandatory implied consent warnings properly.

Dedicated Practice Across Southern California

With office locations situated to serve Southern California courthouses—including Torrance, Long Beach, Santa Monica, San Pedro, Redondo Beach and surrounding jurisdictions—the Law Offices of Matthew Ruff represents individuals facing a wide spectrum of misdemeanor and felony allegations, including DUI, domestic violence, drug charges, and weapons offenses.

When liberty, professional licensing, and driving privileges are on the line, having a defense attorney who combines deep toxicological mastery with unyielding court room advocacy makes all the difference.