Fremont, California DUI Lawyers

Elliot Silver
PREMIUM

California DUI Attorney with 24 years experience

Attorney Elliot Silver is a seasoned and experienced veteran criminal defense attorney. Since the age of five, Elliot always knew he wanted to be in court fighting for justice. Elliot is a graduate of the University of... Read More »
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James Thomas Reilly
PREMIUM

California DUI Lawyer with 44 years experience

Summit Defense is the Bay Area's premiere Criminal Defense Firm. We have gathered an experienced team of attorneys with over 120 years of combined and diverse experience and background that works together to get you the... Read More »
10.0Justia Lawyer Rating for James Thomas Reilly View Profile
Givelle J. Lamano
PREMIUM

5-Star Rated Bay Area Criminal Defense Law & DUI Super Lawyer

GIVELLE LAMANO is an Oakland DUI & Criminal Defense Attorney who truly cares about her clients. She has represented people from all walks of life from gang members appealing their life sentences to corporate... Read More »
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Adam Allen Arant
Claimed Lawyer ProfileSocial Media
Fremont, CA DUI Attorney with 12 years experience
(510) 764-1544 39111 Paseo Padre Pkwy
Suite 203
Fremont, CA 94538
Free ConsultationDUI and Criminal
U.C. Davis School of Law
Adam Allen Arant is a dedicated criminal defense attorney in Fremont and the founder of The Law Offices of Adam Allen Arant. He has committed his career to helping individuals protect their rights. Attorney Arant started his legal journey at the University of California, Davis where he received both his bachelor's and juris doctorate degrees. After graduating law school, he worked with the Sacramento law firm of Diepenbrock Harrison. Wanting to defend the rights of those charged with crimes, he started his own firm. Attorney Arant takes the time to understand each case he takes on, giving the client his...
Leon J. Mezzetti Jr.
Claimed Lawyer Profile
Fremont, CA DUI Attorney with 43 years experience
(510) 791-1836 39300 Civic Center Drive
Suite 260
Fremont, CA 94538
Free ConsultationDUI, Criminal, Domestic Violence and Juvenile
Santa Clara University School of Law
Fremont, CA DUI Lawyer with 13 years experience
(510) 791-1836 39300 Civic Center Dr Ste 110
Fremont, CA 94538
DUI, Criminal, Traffic Tickets and White Collar Crime
Lincoln Law School, Sacramento
Fremont, CA DUI Attorney with 40 years experience
(510) 794-3600 39300 Civic Center Dr
Fremont, CA 94538
DUI, Criminal, Divorce and Personal Injury
U of San Francisco School of Law
Fremont, CA DUI Lawyer with 42 years experience
(510) 792-5110 39300 Civic Center Dr Ste 110
Fremont, CA 94538
DUI, Criminal, Divorce and Family
Santa Clara Univ School of Law
Fremont, CA DUI Lawyer with 30 years experience
(510) 623-4100 39791 Paseo Padre Pkwy Ste G
Fremont, CA 94538
DUI, Bankruptcy, Criminal and Personal Injury
Loyola Law School
Fremont, CA DUI Attorney with 37 years experience
(510) 371-0975 39510 Paseo Padre Parkway
Suite 190
Fremont, CA 94538
DUI, Business, Criminal and Personal Injury
Golden Gate Univ School of Law
Fremont, CA DUI Attorney with 38 years experience
(510) 792-9297 39275 State St
Fremont, CA 94538
DUI and Criminal
Armstrong Coll
Fremont, CA DUI Attorney
(877) 791-1836 39300 Civic Center Drive
Suite 260
Fremont, CA 94538
DUI, Criminal, Domestic Violence and Traffic Tickets
Western Michigan University Cooley Law School
Fremont, CA DUI Attorney with 42 years experience
(510) 713-2880 39510 Paseo Padre Pkwy Ste 300
Fremont, CA 94538
DUI, Criminal, Divorce and Personal Injury
Gonzaga Univ School of Law
Fremont, CA DUI Attorney with 44 years experience
(510) 651-6100 774 Wisteria Dr
Fremont, CA 94539
DUI, Business and Criminal
Golden Gate Univ School of Law
Fremont, CA DUI Attorney with 31 years experience
(510) 792-8668 39111 Paseo Padre Pky #223
Fremont, CA 94538
DUI, Criminal, Divorce and Personal Injury
Santa Clara Univ School of Law
Gustavo Magana, Jr.
Claimed Lawyer Profile
Santa Clara, CA DUI Lawyer with 4 years experience
(408) 430-0411 4701 Patrick Henry Dr. Bldg 16, Suite 15F
Santa Clara, CA 95054
Free ConsultationDUI, Criminal, Personal Injury and Traffic Tickets
Santa Clara University School of Law
Attorney Gustavo Magaña is a personal injury and criminal defense attorney who was born in San Jose California and has been a Bay Area native his entire life.

After working for prominent firms in the Bay Area, Mr. Magaña decided to open the Law Office of Gustavo Magaña to provide better service to his community. Mr. Magaña’s unique background and experience allows him to provide his clients with distinctive representation and personal service.

Mr. Magaña attended Santa Clara University for both his undergraduate and law school education. Mr. Magaña graduated from Santa Clara undergraduate school with a Bachelors degree in Political Science...
Sam Amin
Claimed Lawyer ProfileQ&ASocial Media
San Mateo, CA DUI Attorney
(415) 300-2037 951 Mariners Island Blvd #300
San Mateo, CA 94404
DUI and Criminal
John F. Kennedy University
As a San Francisco criminal defense lawyer, Haitham (Sam) Amin is a passionate and aggressive advocate for the criminally accused. He has represented clients facing both felony and misdemeanor level offenses. Mr. Amin started his legal career early on in the Office of the Public Defenders in Solano County. He continued on to become a Deputy Public Defender in Marin County, tackling DUI and domestic violence cases for clients. This experience helped him gain crucial courtroom skill and insight. Now handling Criminal & DUI cases for his own clients in the Bay Area, Mr. Amin crafts strong and strategic cases....
Christopher F. Morales
Claimed Lawyer ProfileSocial Media
Redwood City, CA DUI Lawyer with 28 years experience
(415) 552-1215 605 Middlefield Rd
Redwood City, CA 94063
Free ConsultationDUI, Criminal and Juvenile
Santa Clara Univ School of Law
If you or your loved have been charged with a crime, you need a skilled criminal defense attorney right away. We defend clients against Federal and State charges, both felonies and misdemeanors, including, but not limited to: Murder, Drug Crimes, Drunk Driving, Theft Crimes, Assault & Battery, Sex Crimes, Juvenile Crimes, Three Strikes, Expungement of Records and White Collar Crimes. Why you need the Morales Law Firm at this critical time: * I am a Board Certified Specialist in Criminal Law, which means I have the highest rating from judges and attorneys (only 1% of attorneys have this certification)...
Lynn Gorelick
Claimed Lawyer ProfileSocial Media
Hayward, CA DUI Attorney with 36 years experience
(510) 785-1444 24301 Southland Drive
Suite 620
Hayward, CA 94545
Free ConsultationDUI, Criminal, Personal Injury and Stockbroker Fraud
University of CA, Hastings College of Law
Lynn Gorelick has been an attorney for over 34 years. Attorney Lynn Gorelick is the Immediate Past President of the California DUI Lawyers Association. This is the only and most well respected legal organization for California Lawyers specializing in DUI defense. Ms. Gorelick has been a member of this organization since its inception and has served on the Board of Directors for over 15 years. She is committed to the protection your rights.

Ms. Gorelick is a Faculty and Sustaining member of the National College of DUI Defense. She has been a featured speaker at the...
Christopher A. Lamiero
Claimed Lawyer ProfileSocial Media
Dublin, CA DUI Lawyer with 25 years experience
(925) 452-8214 11501 Dublin Blvd
Suite 200
Dublin, CA 94568
Free ConsultationDUI, Criminal, Juvenile and Traffic Tickets
University of San Francisco School of Law
I spent nearly 25 years as a state court prosecutor. The majority of those years were served in Alameda County, and a few years were served in Santa Clara County. I specialized in high profile, complex felony prosecutions. I was the trial prosecutor in the case of People v. Madison, Merel, and Cazares. The case involved the prosecution of three men for the murder of Gwen Araujo, a transgender, teenaged girl from Newark, California. The famous case became the subject of a Lifetime Network movie called, "A Girl Like Me."

There is no aspect of the...
Albie Jachimowicz
Claimed Lawyer ProfileBlawgsearchSocial Media
San Jose, CA DUI Lawyer with 37 years experience
(800) 576-4210 1530 The Alameda
Suite 115
San Jose, CA 95126
Free ConsultationDUI, Criminal and Personal Injury
Santa Clara Univ School of Law
Albie Jachimowicz, a former police officer in San Mateo County, was admitted to the State Bar in 1982 and has been both a winning criminal and civil trial lawyer for several years since that time. He has tried a wide variety of cases in State and Federal court, including murder cases. He graduated Magna Cum Laude from California State University at Sacramento and received his law degree from Santa Clara Law School. In his free time, Mr. Jachimowicz races in both road and off-road bicycle races and is one of the most experienced attorneys in California for dealing with...
Sergio H. Benavides
Claimed Lawyer ProfileQ&ASocial Media
Hayward, CA DUI Lawyer with 13 years experience
(415) 867-5181 24301 Southland Drive
Suite 212 B
Hayward, CA 94545
Free ConsultationDUI, Criminal, Domestic Violence and Juvenile
University of San Francisco School of Law
I am a top rated Criminal Defense Lawyer and Certified Criminal Law Specialist- by State Bar of California, Board of Legal Specialization. Out of hundreds of Criminal Defense Lawyers in San Francisco--there are only 10 Certified Specialists. I am one of the top performers. I have 10 years of experience, having helped thousands of clients with every type of criminal charge, from petty theft, to drug possession, to attempted murder and sexual assault. I've handled DUIs, Domestic violence. I have taken over 30 cases to trial, and achieved excellent results. I am fluent...
Mr. Nafiz M. Ahmed
Claimed Lawyer Profile
Redwood City, CA DUI Attorney with 14 years experience
(650) 299-0500 600 Allerton Street
Suite 201
Redwood City, CA 94063
DUI, Criminal, Domestic Violence and White Collar Crime
Santa Clara Univ School of Law
Lucy Stearns McAllister
Claimed Lawyer ProfileSocial Media
San Jose, CA DUI Lawyer with 31 years experience
(877) 280-9944 255 N Market St
San Jose, CA 95110
DUI, Administrative, Criminal and Domestic Violence
Santa Clara University
The Law Offices of Lucy S. McAllister is a California-based administrative law, licensing law and criminal law practice providing legal services for clients in California. Attorney McAllister has successfully won over 250 Superior Court trials as a Defense Attorney.With 30+ years experience as a civil and criminal attorney.

She specializes in the following areas of law:

Licensing Law :
Pre-hearing resolution of licensing issues, Administrative Hearings, Administrative Appeals, License Applications, Legal Advice, Handling License Criminal Disclosures (Applications, Renewals, Reinstatements), criminal record expungement.

Criminal Law:
Restraining orders, DUI charges and convictions, Domestic Violence, Sex Charges, Strikes Charges, Assault and Battery, Theft and Fraud,...
James Thomas Reilly
Claimed Lawyer ProfileLII GoldSocial Media
(866) 251-4506 1970 Broadway, Suite 1145
Oakland, CA 94612
Free ConsultationOakland, CA DUI Lawyer with 44 years experience
DUI, Criminal, Domestic Violence and White Collar Crime
Pepperdine Univ School of Law
Summit Defense is the Bay Area's premiere Criminal Defense Firm. We have gathered an experienced team of attorneys with over 120 years of combined and diverse experience and background that works together to get you the best results. Call to speak with an attorney now.
Javier Demetrio Rios
Claimed Lawyer ProfileSocial Media
San Jose, CA DUI Lawyer with 31 years experience
(408) 478-4444 1010 West Taylor Street
San Jose, CA 95126
Free ConsultationDUI, Criminal, Domestic Violence and White Collar Crime
Univ of Michigan Law Sch and University of Michigan - Ann Arbor
100% Defense -Criminal Law Only -Award Winning Attorney -Over 25 years of experience in Santa Clara County Courts -Extensive trial experience, everything from high profile murder cases to misdemeanor DUIs -Work has been featured on the front page of San Jose Mercury News -Bilingual (Spanish) One Dedicated Lawyer: I work hard because I want the best possible results. Sometimes a case that looked impossible at first, gets better if I work hard enough.
Erik Steven Johnson
Claimed Lawyer ProfileBlawgsearchSocial Media
San Jose, CA DUI Attorney with 12 years experience
(408) 246-3004 247 N. Third Street
San Jose, CA 95112
Free ConsultationDUI, Criminal, Domestic Violence and Family
Santa Clara Univ School of Law
Erik Steven Johnson is a dedicated criminal defense attorney with a unique passion for defending the legal rights of his clients. His particular legal experience includes, but is not limited to: driving under the influence (DUI), domestic violence, hit-and-run accidents, drug-related offenses, theft (both petty and grand), and sex crimes, among many more. He is committed to providing the best legal representation to his clients, and maintains a high percentage of client satisfaction, thanks, in part, to being detail oriented.

Mr. Johnson is an honors-scholarship graduate from Saint Mary's College, where he received a bachelor's degree in political theory. He has...
Daniel Jensen
Claimed Lawyer ProfileSocial Media
San Jose, CA DUI Lawyer with 37 years experience
(408) 648-2399 2007 W Hedding St #104
San Jose, CA 95128
DUI, Criminal, Divorce and Family
Lincoln University
Daniel Jensen has truly established himself as a top lawyer in Santa Clara County. In fact, Jensen has been selected five times by the San Jose Magazine as one of Silicon Valley's Best Lawyers in Criminal Law and Family Law. As a former police officer and sergeant, Jensen has great knowledge when it comes to effectively defending his clients in state and federal courts. If you or a loved one are in need of legal guidance, Daniel Jensen may be able help. Learn more by calling the The Law Office of Daniel Jensen, P.C. at (408) 296-4100.
Richard Alan Wingerden
Claimed Lawyer ProfileSocial Media
San Jose, CA DUI Attorney with 18 years experience
(408) 564-5870 777 N 1st
Suite 333
San Jose, CA 95112
DUI, Criminal, Domestic Violence and White Collar Crime
Lincoln Law Sch of San Jose
Richard Wingerden will handle every client's matter personally, professionally, and with a great degree of dedication. All of his clients receive the attention they need whether accused of criminal wrong doing, need peace of mind in drafting of a will and trust, or need business advice or drafting of a contract. With many years as a practicing litigation attorney, Mr. Wingerden has exceptional skill in client advocacy, negotiating, investigating, analyzing, critically reviewing, and resolving minor criminal offense to complex and serious felonies. Mr. Wingerden has an expert understanding of the criminal justice system and proven ability to understand all...
Ms. Lucy Zheng
Claimed Lawyer ProfileSocial Media
Oakland, CA DUI Attorney with 7 years experience
(408) 638-7006 1300 Clay Street, Suite 600
Oakland, CA 94612
Free ConsultationDUI, Bankruptcy, Divorce and Family
Loyola Law School, Los Angeles
Lucy Zheng is a California licensed attorney, experienced in individual tax debt relief, DUI law, family law, personal bankruptcy filings, and tenant evictions. Prior to forming her own practice, Lucy worked at a law firm handling multiple client cases all throughout Northern California. She witnessed the strengths and weaknesses of a larger law firm, and thus determined she could best provide her clients with the personalized attention and service that they deserve by starting her own practice. Lucy received her Bachelor of Arts degree in Political Science with an emphasis on Public Law in only 3 years, from the University of...
Alexander Cross
Claimed Lawyer ProfileSocial Media
Oakland, CA DUI Lawyer with 11 years experience
(800) 862-7677 1300 Clay St., Suite 600
Oakland, CA 94612
DUI, Criminal, Juvenile and Traffic Tickets
University of San Francisco School of Law
Mr. Cross is an expert in the field of criminal law. Mr. Cross will fight more aggressively than anyone to bring you the best outcome possible. His name brings chills to prosecutors, as evidenced by never losing a trial out of over 1,500 cases. He passionately cares about defending his clients and does everything within his power to help them. Having attended the University of California, Berkeley for Undergraduate studies, he received a B.A. in Legal Studies. He subsequently attended the prestigious San Francisco Law School to receive his J.D. He is a member of many associations, including...
Harvey L. Ziff
Claimed Lawyer Profile
Los Altos, CA DUI Attorney with 52 years experience
(650) 329-0851 4962 El Camino Real
#126
Los Altos, CA 94022
Free ConsultationDUI, Criminal, Personal Injury and Products Liability
Stanford Law School and Northwestern University School of Law
Wesley J. Schroeder
Claimed Lawyer ProfileSocial Media
San Jose, CA DUI Lawyer
(408) 277-0377 181 Devine Street
San Jose, CA 95110
Free ConsultationDUI, Criminal, Domestic Violence and Juvenile
University of California - Davis
While I was always interested in a legal career as I grew up and went through my years of education, it was not until I became quite involved in the civil rights movement during the 1960’s that I really began to understand how absolutely vital it was to protect the individual rights of citizens. This is especially true for persons charged with a criminal offense. People ask how I can represent “guilty” people, or those persons accused of serious crimes. The fact is I am proud and honored to do so because I deeply believe in the principles of...
John Douglas Cahners
Claimed Lawyer Profile
Palo Alto, CA DUI Attorney with 48 years experience
(650) 493-3900 260 Sheridan Avenue
Suite 200
Palo Alto, CA 94306
Free ConsultationDUI, Criminal and Domestic Violence
UC Hastings COL
John D. Cahners is a State Bar Certified Specialist in Criminal Law, who was a former senior prosecutor with the Santa Clara County District Attorneys Office. He has been defending those charged with crimes, since 1980.

He has been successful at handling all kinds of criminal defense with experience that includes every kind of crime, from DUI to Homicide. As a result of the new trend in prosecutions, he has become expert in handling Domestic Violence cases, and has devoted a substantial percentage of his practice to that area.

AV peer review rated by Martindale Hubble, he is also recognized by San...
Harjot Walia
Claimed Lawyer ProfileSocial Media
San Jose, CA DUI Attorney
(800) 379-9330 152 N. 3rd St
Suite 710
San Jose, CA 95112
Free ConsultationDUI, Criminal, Domestic Violence and Personal Injury
Founder of The Walia Law Firm, Harjot "Ginny" Walia has handled numerous cases throughout the criminal courts of the greater San Francisco Bay Area. San Francisco criminal defense attorney, Harjot "Ginny" Walia, has achieved a very high level of success in a relatively short period of time. The firm has reached great heights due to Ms. Walia’s extensive jury trial record, brilliant mind, competitive attitude and a willingness to fight for her clients. She has handled hundreds of criminal cases as a San Francisco Public Defender and in private practice. Federal criminal defense attorney, Ginny Walia has commented as an...
John W. Noonan
Claimed Lawyer ProfileBlawgsearch
Dublin, CA DUI Lawyer with 56 years experience
(877) 463-3390 6379 Clark Ave
#250
Dublin, CA 94568
Free ConsultationDUI, Criminal, Domestic Violence and White Collar Crime
Santa Clara University School of Law and Lincoln University Law School
Joshua R. Jachimowicz
Claimed Lawyer ProfileBlawgsearchSocial Media
San Jose, CA DUI Lawyer with 8 years experience
(408) 246-5500 1530 The Alameda
Suite 115
San Jose, CA 95126
DUI, Criminal, Domestic Violence and Personal Injury
Santa Clara University School of Law and Santa Clara University School of Law
Joshua Robinett Jachimowicz was admitted to the State Bar in 2011. Mr. Jachimowicz began working with his father's firm as a law clerk while attending law school. He graduated the University of California at Santa Barbara with a bachelor's degree in Physics. Like his father, he received his law degree from the Santa Clara University School of Law. While at Santa Clara, he received honors for his academic efforts in Wills and Trusts, Employment Discrimination and Trial Techniques classes. As a young attorney, he has handled numerous criminal matters, including petty thefts, drug offenses, and DUIs. Mr. Jachimowicz recently married...
Rabin Nabizadeh
Claimed Lawyer Profile
(925) 218-4730 6200 Stoneridge Mall Rd #300
Pleasanton, CA 94588
Free ConsultationPleasanton, CA DUI Attorney with 14 years experience
DUI, Criminal, Domestic Violence and Juvenile
UC Hastings COL
Thomas Frederick Mueller
Claimed Lawyer ProfileSocial Media
San Jose, CA DUI Lawyer with 49 years experience
(408) 673-9140 95 South Market Street
Suite 300
San Jose, CA 95113
Free ConsultationDUI, Criminal, Juvenile and Traffic Tickets
University of Illinois - Chicago
Patrick Coughlin
Claimed Lawyer ProfileSocial Media
San Jose, CA DUI Lawyer with 10 years experience
(408) 444-5298 1885 The Alameda
Suite 110
San Jose, CA 95126
Free ConsultationDUI, Criminal and Traffic Tickets
Santa Clara University School of Law
I am a dedicated criminal defense attorney who has handled every type of violation imaginable, from parking tickets to serious felonies. I strive to work toward the best resolution for my clients while keeping them informed and doing my best to meet or exceed their expectations. I am originally from Southern California, but have practiced throughout the Bay Area and its surrounding courts for over 5 years. I have experience as a public defender so I am confident managing stressful situations and working with many different types of clients.
Thomas Nicholas Cvietkovich
Claimed Lawyer ProfileSocial Media
San Jose, CA DUI Lawyer with 13 years experience
(408) 625-1130 111 N. Market Street
Suite 300
San Jose, CA 95113
Free ConsultationDUI, Criminal, Domestic Violence and Family
Santa Clara University School of Law
Mr. Cvietkovich is very well-connected in the Bay Area being a 6th generation resident of San Jose. He currently works in the same building where his great-uncle had a law practice from the 1960s to the 1980s. Mr. Cvietkovich has handled over 3000 cases in his career and he uses his vast experience to aggressively defend his clients. Mr. Cvietkovich is a member of the Santa Clara County Bar Association and the California Public Defender’s Association. To find out about our flexible and affordable payment options or to receive a free consultation, please contact us today at 408-625-1130.
Jeff Jackson
Claimed Lawyer ProfileSocial Media
Redwood City, CA DUI Lawyer with 17 years experience
(866) 985-4850 303 Twin Dolphin Dr
#600
Redwood City, CA 94065
DUI, Criminal, Domestic Violence and Personal Injury
Santa Clara University
I specialize in criminal defense. I handle all serious felonies, including sex crimes, drug cases, weapon charges, domestic violence, child abuse, gang cases, violent felonies, burglary, robbery, theft, fraud, and DUI cases. In addition, I handle all varieties of misdemeanor cases, including DUIs. I graduated from the University of Pennsylvania in 1996. I subsequently graduated from Santa Clara University School of Law in 2001. I started my legal career as a prosecutor working in the District Attorney’s office in San Mateo County where I worked from 2001 to 2007. In 2007, I joined the prestigious law firm of Ropers,...
James E Dunn
Claimed Lawyer ProfileSocial Media
Oakland, CA DUI Attorney with 22 years experience
505 14th Street, Suite 900
Oakland, CA 94612
DUI and Criminal
Loyola Law School, Los Angeles
Are you looking for a Redwood City criminal defense attorney? You have come to the right place! At Law Office of James Dunn, you can have confidence in the representation you can receive when you come to this firm. Attorney Dunn has dealt with a wide variety of criminal charges, and he has a thorough understanding of the criminal process. He is knowledgeable, experienced, and committed to fighting for you and the resolution that is in your best interests, and you can have confidence in the support you can receive when you come to this law firm. Whatever the specifics...
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Arrested or charged with a DUI or DWI?

Driving under the influence (DUI) means operating a motor vehicle after consuming alcohol or drugs that have impaired a person's mental or motor skills. In most states, a person will be considered "impaired" if they exhibit objective signs of intoxication, or if they have a blood alcohol content of .08 or higher. Many states also have zero tolerance laws for drivers under 21, where any non-zero BAC level constitutes an offense. Most states also hold commercial drivers, such as truck drivers, to a more rigorous standard.

Law enforcement officers use a variety of tests, such as field sobriety tests and breathalyzers, to determine whether a driver is impaired by alcohol. In some jurisdictions, you have a right to refuse some of these tests, but in other jurisdictions you may be required to submit to them. It is important to know the law in your particular state, and to consult a DUI attorney if you are facing charges.

DUI lawyers are criminal defense attorneys focused on representing clients facing DUI/DWI/OWI charges. Each state has different DUI laws. An experienced DUI lawyer will be able to evaluate the case against you and present your options on how to best limit the impact of the charges against you. DUI lawyers also handle related cases such as driver's license reinstatement and DUI record expungement.


Blood Alcohol Concentration (BAC): The percentage of alcohol in a person's blood.

Field Sobriety Test: Any one of several roadside tests that can be used to determine whether a driver is impaired.