If you’ve been arrested or charged with felony DUI in Lancaster, you’re facing the most serious drunk driving charges in California—charges that can result in years in state prison, tens of thousands of dollars in fines, permanent loss of your driver’s license, a felony conviction on your record forever, and devastating consequences affecting your employment, professional licenses, custody rights, immigration status, and future. At Tu Defensor Criminalista, we provide aggressive, experienced legal representation to defend against all felony DUI charges throughout Lancaster and Los Angeles County.
Felony DUI charges arise when you’re arrested for a fourth DUI within 10 years, when DUI results in injuries to others, when you have prior felony DUI convictions, or when DUI causes death resulting in vehicular manslaughter charges. These arrests occur throughout Lancaster on Avenue I, 10th Street West, Lancaster Boulevard, Sierra Highway, State Route 14, and throughout the Antelope Valley when the California Highway Patrol or Lancaster Sheriff’s Station deputies investigate accidents with injuries, conduct DUI checkpoints, or make traffic stops discovering drivers with multiple prior DUI convictions. Many people charged with felony DUI are not hardened criminals but working people, parents, and community members who made serious mistakes during difficult times and now face life-changing consequences. We’ve successfully defended hundreds of clients facing felony DUI charges throughout Southern California, achieving reduced charges, favorable plea agreements, acquittals at trial, and outcomes that protect our clients’ freedom, families, and futures.
Under California law, most first, second, and third DUI offenses within 10 years are charged as misdemeanors carrying maximum penalties of six months to one year in county jail, fines, license suspensions, DUI programs, and probation. However, specific circumstances elevate DUI charges to felonies with dramatically harsher penalties including multiple years in state prison, permanent felony records, and consequences that follow you for life.
Fourth DUI Within 10 Years – Vehicle Code Section 23550
According to California Vehicle Code Section 23550[1], if you’re convicted of a fourth DUI offense within 10 years of three prior DUI convictions, prosecutors can charge the offense as a felony. This includes any combination of DUI violations under Vehicle Code Sections 23152(a) (driving under the influence of alcohol), 23152(b) (driving with blood alcohol concentration of 0.08% or higher), 23152(f) (driving under the influence of drugs), or 23153 (DUI causing injury).
The 10-year lookback period is calculated from arrest date to arrest date, not conviction date to conviction date. This means prosecutors count prior DUI arrests that occurred within 10 years of your current arrest, even if convictions occurred outside the 10-year window due to case delays. For example, if you were arrested for DUI on January 1, 2015, January 1, 2017, January 1, 2020, and January 1, 2024, all four arrests fall within the 10-year period even though the first conviction might have occurred in 2016.
Penalties for fourth DUI felony conviction include:
While the statute allows for state prison sentences, courts sometimes grant probation to fourth DUI defendants who demonstrate exceptional rehabilitation efforts, complete residential alcohol treatment programs before sentencing, have strong family and community support, maintain stable employment, and present compelling mitigation evidence. However, probation typically requires serving 180 days to one year in county jail as a condition of probation, along with completing all DUI programs, maintaining ignition interlock devices, submitting to random alcohol and drug testing, attending Alcoholics Anonymous meetings, and complying with strict probation terms for three to five years.
When you drive under the influence of alcohol or drugs and cause bodily injury to another person (not yourself or your passengers), you face felony DUI causing injury charges under California Vehicle Code Section 23153. This is classified as a “wobbler” offense under California law, meaning prosecutors have discretion to charge it as either a misdemeanor or a felony depending on the specific circumstances of your case, the severity of injuries sustained by victims, your prior criminal record, your blood alcohol concentration at the time of the offense, and whether aggravating factors exist such as excessive speed, extremely high BAC levels, hit and run conduct, child passengers in your vehicle, or multiple injured victims.
Prosecutors typically charge felony DUI causing injury when injuries sustained by victims are serious, significant, or require substantial medical treatment; when multiple victims were injured in the accident; when your blood alcohol concentration was substantially over the 0.08% legal limit such as 0.15% or higher; when you have prior DUI convictions on your record demonstrating a pattern of drunk driving; or when aggravating factors exist including excessive speed, reckless driving, attempting to flee the scene, or having children in the vehicle.
Felony DUI causing injury penalties under Vehicle Code Section 23153 include:
The great bodily injury enhancement under Penal Code Section 12022.7 dramatically increases your prison exposure. “Great bodily injury” is defined as significant or substantial physical injury beyond minor or moderate harm. Examples include broken bones, serious lacerations requiring extensive sutures, significant internal injuries, concussions, injuries requiring surgery, or any injury resulting in prolonged hospitalization or significant recovery period.
When DUI results in someone’s death, you face the most serious DUI-related charges in California criminal law. Depending on the specific circumstances, level of negligence, your prior DUI history, and whether you received previous warnings about the dangers of drunk driving, you can be charged with gross vehicular manslaughter while intoxicated under California Penal Code Section 191.5(a), vehicular manslaughter while intoxicated under Penal Code Section 191.5(b), or even second-degree murder under the “Watson murder” rule established in People v. Watson if you have prior DUI convictions and previously received Watson advisements warning you that drunk driving is extremely dangerous to human life and that you could be charged with murder if you kill someone while driving drunk.
Gross vehicular manslaughter while intoxicated (Penal Code Section 191.5(a)) applies when you were driving under the influence of alcohol or drugs, committed an unlawful act or a lawful act that might produce death in an unlawful manner, and acted with gross negligence. Gross negligence means acting in a reckless way that creates a high risk of death or great bodily injury, and a reasonable person would have known that acting in that way would create such a risk.
Penalties for gross vehicular manslaughter while intoxicated include:
Vehicular manslaughter while intoxicated (Penal Code Section 191.5(b)) is a lesser charge applying when you caused someone’s death through ordinary negligence rather than gross negligence. Penalties include 16 months, 2 years, or 4 years in California state prison, substantial fines and restitution, and license suspension or revocation.
Watson murder (second-degree murder under People v. Watson) applies when you have prior DUI convictions and previously received Watson advisements during those prior cases. Penalties for Watson murder conviction include 15 years to life in California state prison.
Prior Felony DUI Conviction – Vehicle Code Section 23550.5
Under California Vehicle Code Section 23550.5, if you have any prior felony DUI conviction at any point in your life (not just within the past 10 years), any subsequent DUI arrest can be charged as a felony regardless of how much time has passed since the prior felony conviction. This means that a felony DUI conviction from 15, 20, or even 30 years ago can be used to elevate your current DUI misdemeanor arrest to a felony charge.
According to the California Department of Motor Vehicles[2], California law enforcement makes tens of thousands of DUI arrests annually throughout the state. The California Office of Traffic Safety[3] reports that alcohol-impaired driving remains one of the leading causes of traffic fatalities and serious injury collisions in California, prompting aggressive prosecution of felony DUI cases.
Lancaster, with a population of approximately 173,000 residents according to the U.S. Census Bureau[4], is the largest city in the Antelope Valley region of northern Los Angeles County. Located approximately 70 miles north of downtown Los Angeles in the western Mojave Desert, Lancaster is a sprawling city covering over 94 square miles. The city’s location along State Route 14 (the Antelope Valley Freeway) and major arterial streets including Avenue I, Avenue J, Lancaster Boulevard, 10th Street West, 20th Street West, and Sierra Highway creates high-traffic corridors where DUI enforcement occurs regularly and where injury accidents involving drunk drivers can quickly escalate to felony charges.
Lancaster’s desert geography, wide streets designed for high-speed travel, long distances between destinations, and limited public transportation options create an environment where residents depend almost entirely on personal vehicles for transportation. The city’s major commercial corridors including the Lancaster Marketplace shopping area, downtown Lancaster along Lancaster Boulevard, The BLVD entertainment district, and venues throughout the city draw residents who may consume alcohol at restaurants, bars, or social gatherings and then make the dangerous decision to drive home.
The Antelope Valley’s straight roads, minimal traffic congestion compared to other Los Angeles County areas, and desert environment where drivers can see for long distances sometimes create a false sense of security that encourages speeding and risk-taking behaviors. When combined with alcohol impairment, these factors frequently result in high-speed crashes that cause serious injuries or fatalities, leading to felony DUI charges.
State Route 14, the major freeway connecting Lancaster to Los Angeles and the rest of Southern California, experiences regular high-speed traffic and serves as a commuter route for thousands of Antelope Valley residents who work in Los Angeles. DUI-related accidents on State Route 14 frequently involve high speeds and multiple vehicles, resulting in serious injuries and felony DUI prosecutions.
California Highway Patrol Enforcement – The California Highway Patrol[5] Antelope Valley Area office serves Lancaster, Palmdale, and surrounding Antelope Valley communities, aggressively enforcing DUI laws throughout the region. CHP officers patrol State Route 14, State Route 138, Avenue I, and other major corridors, conducting traffic stops for suspected DUI, responding to injury accidents where alcohol impairment is suspected, and conducting sobriety checkpoints during holiday periods and weekends when drunk driving is most prevalent.
CHP officers who investigate felony DUI causing injury or death cases are specially trained in advanced DUI detection, accident reconstruction, and major traffic collision investigation. These officers conduct thorough investigations including detailed accident scene documentation, chemical testing of all drivers’ blood for alcohol and drugs, comprehensive witness interviews, review of medical records documenting victim injuries, calculation of vehicle speeds based on physical evidence, and analysis of road conditions and other factors.
– The Los Angeles County Sheriff’s Department Lancaster Station, located at 501 West Lancaster Boulevard, serves the City of Lancaster and surrounding unincorporated areas of the Antelope Valley. Sheriff’s deputies respond to DUI-related traffic accidents on local streets throughout Lancaster’s neighborhoods, conduct DUI enforcement patrols targeting impaired drivers, and make arrests for felony DUI when drivers with prior convictions are discovered or when injuries occur.
Lancaster Sheriff’s deputies patrol Lancaster Boulevard through downtown Lancaster, an area with restaurants, bars, and entertainment venues where intoxicated individuals may attempt to drive home; Avenue J corridor with shopping centers and commercial development; 10th Street West and 20th Street West, major north-south arterials carrying heavy traffic; residential neighborhoods throughout Lancaster where injury accidents occur; and shopping centers and commercial areas along Avenue I.
High-Risk Areas for Felony DUI Arrests – Felony DUI arrests occur frequently at these Lancaster locations:
Officers observe drivers for signs of intoxication including alcohol odor, bloodshot and watery eyes, slurred speech, unsteady balance, confusion, and other symptoms. Officers conduct field sobriety tests when impairment is suspected. Once drivers are arrested for DUI, officers arrange for chemical testing—typically blood draws for injury cases because blood provides more accurate results and tests for both alcohol and drugs.
Officers prepare comprehensive reports documenting all evidence. These reports are forwarded to the Los Angeles County District Attorney’s Office Antelope Valley Branch, where experienced prosecutors review the evidence and file felony charges when the evidence supports DUI causing injury under Vehicle Code Section 23153. The severity of charges filed depends largely on the extent of injuries sustained by victims.
When drivers are arrested at checkpoints or during routine traffic enforcement for suspected DUI, officers run criminal history checks through California and national databases. These checks immediately reveal prior DUI convictions. If criminal history checks show three prior DUI convictions within the past 10 years, the current DUI arrest is immediately treated as a fourth DUI felony case with corresponding bail amounts ($50,000 or higher) and felony prosecution.
Fatal DUI investigations involve detailed accident scene reconstruction, comprehensive vehicle inspection, toxicology analysis of all drivers, extensive witness interviews, analysis of vehicle black box data, review of surveillance video, and coordination between investigators and prosecutors. Vehicular manslaughter and Watson murder cases typically involve months-long investigations before charges are filed.
Felony DUI convictions create severe direct criminal penalties and devastating collateral consequences that affect virtually every aspect of convicted defendants’ lives for years or permanently.
Fourth DUI Felony Conviction:
DUI Causing Injury Felony Conviction:
Vehicular Manslaughter Convictions:
Administrative Per Se (APS) Suspensions – When arrested for DUI, officers confiscate licenses and issue temporary licenses valid 30 days. According to the California DMV[2], you must request hearings within 10 days to contest suspensions.
APS suspension periods:
Conviction-Based Actions – Upon felony DUI convictions, DMV imposes:
Ignition Interlock Devices – California requires IID for all DUI convictions:
Employment Devastation – Felony convictions devastate employment:
Professional Licensing – State boards discipline professionals:
Immigration Consequences – For non-citizens, felony DUI can trigger deportation. According to the U.S. Citizenship and Immigration Services[6], aggravated felonies and crimes involving moral turpitude affect immigration status, potentially leading to mandatory removal proceedings.
Other Consequences:
Felony DUI charges can be defended using various strategies depending on specific case facts.
Prosecution must prove intoxication caused the accident. We challenge by showing other driver was at fault, unavoidable accident occurred regardless of intoxication, road conditions or mechanical failures caused accident, victim negligence contributed, or insufficient causation evidence exists. We retain accident reconstruction experts who analyze evidence establishing accidents occurred due to other factors.
GBI enhancements add 3-6 years. We demonstrate injuries don’t meet legal standard, obtain medical records showing minor injuries, show pre-existing conditions, and retain medical experts testifying injuries don’t meet threshold. Successfully defeating enhancements reduces prison exposure from 10+ years to 2-3 years.
Fourth DUI requires proving three priors within 10 years. We verify priors exist and were properly recorded, check whether priors fall outside 10-year period, determine if obtained through constitutional violations, and move to strike invalid priors. One prior outside the window reduces charges from felony to misdemeanor.
We negotiate for felony to misdemeanor reduction, dismissal of enhancements, alternative sentencing with residential treatment, probation instead of prison, and reduced custody time.
After arrest, you’re transported to Lancaster Sheriff’s Station or hospital for blood draw. Booking includes recording information, fingerprints and photographs, criminal history checks, and setting bail typically ranging $25,000 to $250,000 depending on charges.
First appearance occurs at Antelope Valley Courthouse (42011 4th Street West, Lancaster) where you’re advised of charges, receive complaint, enter plea (typically not guilty), court reviews bail, and future dates are scheduled. We strongly recommend having attorney at arraignment to argue bail reduction, obtain discovery, and protect rights.
For felonies, preliminary hearings within 10 court days (if in custody) or 60 days (if out) require prosecution to establish probable cause. We cross-examine witnesses, expose weaknesses, create trial transcript, negotiate from strength, and sometimes achieve dismissals or reductions.
Discovery – We obtain all prosecution evidence including police reports, CHP reports, witness statements, chemical tests, medical records, videos, and prior conviction records.
Independent Investigation – We interview witnesses, photograph scenes, obtain surveillance footage, review medical records, consult experts, and locate defense witnesses.
Motion Practice – We file motions to suppress illegally obtained evidence, obtain officer personnel files (Pitchess motions), strike priors, exclude unreliable evidence, and dismiss charges.
Negotiations – We negotiate with the Los Angeles County District Attorney’s Office[7] Antelope Valley Branch seeking dismissals, reductions, enhancement dismissals, alternative sentencing, or favorable pleas.
If cases proceed to trial, we provide aggressive representation including jury selection, opening statements, cross-examination, expert testimony, and closing arguments emphasizing reasonable doubt.
If convictions occur, we present mitigation seeking probation, low-term sentences, alternative sentencing, residential treatment, and outcomes preserving opportunities. We present evidence including lack of violence, employment, family responsibilities, support letters, treatment completion, remorse, and rehabilitation.
Separate from criminal proceedings, DMV conducts hearings. You must request hearings within 10 days to contest suspensions. We represent clients challenging whether officer had probable cause, proper advisements, BAC was 0.08% or higher, and proper testing. Winning preserves driving privileges.
Courts sometimes allow residential treatment as alternatives. Programs offer 60-180 day inpatient treatment, medical detoxification, counseling, dual diagnosis treatment, relapse prevention, aftercare planning, and family involvement. Successful completion demonstrates rehabilitation.
California requires completion: 18-month programs for second DUI or 30-month SB 38 programs for fourth DUI, costing $1,800-$3,000.
Participation in Alcoholics Anonymous, SMART Recovery, or other groups demonstrates commitment to sobriety.
Not necessarily. Some fourth DUI defendants receive probation with county jail, especially with strong mitigation and treatment completion. However, DUI causing serious injury typically results in prison.
Sometimes. Fourth DUI and DUI causing injury are “wobblers” reducible through negotiations or at sentencing under Penal Code Section 17(b), depending on facts, injury severity, BAC, record, and mitigation.
Suspensions range from 4 years (fourth DUI) to 5 years (injury) to lifetime (manslaughter), though restricted licenses with IID may eventually be available.
If another driver caused it, you can’t be convicted of DUI causing injury even if intoxicated. We investigate thoroughly, retaining experts to prove other parties at fault.
Possibly for fourth DUI with exceptional mitigation including treatment completion, lack of injuries, time since priors, employment, and commitment to sobriety. Injury cases rarely get probation except with minimal injuries.
Felony convictions can trigger deportation even for legal permanent residents. We coordinate with immigration attorneys to minimize consequences.
Penal Code Section 1203.4 allows some dismissals after probation completion, though relief is limited and doesn’t prevent immigration consequences.
Invoke right to silence and attorney. Don’t make statements. Request DMV hearing within 10 days. Contact experienced counsel immediately.
Costs vary by complexity. We offer free consultations. The cost of inadequate representation—conviction and consequences—far exceeds attorney fees.
Felonies carry state prison versus jail, permanent felony records with severe consequences, strikes under Three Strikes, lifetime firearm prohibitions, and devastate employment more than misdemeanors.
Felony DUI charges threaten your freedom, future, family, and everything you’ve worked for. Don’t wait to get help. Early intervention provides the best chance for favorable outcomes.
Contact Tu Defensor Criminalista today for a free, confidential consultation. We’ll review your case thoroughly, explain options clearly, answer questions honestly, and develop a strategic defense plan. We’re available 24/7 because DUI arrests happen at all hours and you need immediate help.
Your freedom and future are worth fighting for. Let Tu Defensor Criminalista fight for you with the experience, skill, and dedication your case demands. Call now—every moment counts.
Attorney Armando Josué Cespedes is rated 5.0 on Avvo, with 34 five-star reviews from clients praising his dedication, professionalism, and results. Many note how his trial skills and attention to detail led to reduced charges or outright dismissals.
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