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HomeCriminal Defense LawyersCalifornia › Diamond Bar

Find Criminal Defense Lawyers Near You in Diamond Bar, CA

Browse criminal defense lawyers serving Diamond Bar, California. Updated 2026-07-14.

The top-rated criminal defense lawyer in Diamond Bar, California is JAMES WANG LAW, rated 5.0 stars across 803 reviews. Other highly rated options include LA OC Lawyers Group, Law Huang International Ltd, The Law Office of James Perez, Esq.. This directory lists 16 criminal defense lawyers serving Diamond Bar.

Showing 16 criminal defense lawyers in Diamond Bar, CAListings are displayed in no particular order and are not ranked. Order does not constitute a recommendation or endorsement.

Comparison

Top 10 listings
#NameAddressPhone
1JAMES WANG LAW20657 Golden Springs Dr UNIT 201(626) 800-0000
2LA OC Lawyers Group888 S Brea Canyon Rd Ste 355(909) 595-3999
3Law Huang International Ltd556 N Diamond Bar Blvd # 305(626) 866-1719
4The Law Office of James Perez, Esq.21308 Pathfinder Rd # 105(909) 245-4787
5Concord & Sage PC1360 Valley Vista Dr suite 140(626) 766-9272
6The Pollard Firm, APC556 N Diamond Bar Blvd #300(909) 396-1800
7Apex Lawyers21671 Gateway Center Dr #108(909) 306-5985
8Weber Law | Criminal Defense Lawyers21700 Copley Dr(626) 606-9661
9Michael W. Brown, LLP Attorney at Law22632 Golden Springs Dr UNIT 115(909) 860-1986
10Eric D. Davis, Attorney at Law20955 Pathfinder Rd #100(909) 861-8075
JW
20657 Golden Springs Dr UNIT 201
JAMES WANG LAW
Criminal Defense Lawyer · Diamond Bar, CA

James Wang Law serves clients throughout the Los Angeles County area, including Diamond Bar, California, focusing on criminal defense representation. The firm handles a broad range of criminal matters, from misdemeanors to serious felony charges. Its practice covers cases involving drug offenses, theft, assault, and DUI allegations. The firm works to protect clients' rights during investigations and court proceedings. Specific services it handles include probation violation defense and expungement petitions to help clear past criminal records.

LO
888 S Brea Canyon Rd Ste 355
LA OC Lawyers Group
Criminal Defense Lawyer · Diamond Bar, CA

LA OC Lawyers Group provides criminal defense representation for clients facing a wide range of charges, from misdemeanors to serious felonies. Its service approach focuses on case evaluation, evidence analysis, and strategic courtroom advocacy to protect clients’ rights. The firm offers ongoing legal support and consultation throughout the legal process. It serves individuals and businesses in Diamond Bar and the surrounding area, handling cases involving single-family homes, apartment residents, retail establishments, and restaurants.

LH
556 N Diamond Bar Blvd # 305
Law Huang International Ltd
Criminal Defense Lawyer · Diamond Bar, CA

Law Huang International Ltd serves individuals and families in Diamond Bar facing criminal charges, providing defense counsel for offenses ranging from misdemeanors to serious felonies. The firm works to protect clients' rights during police interrogations and court proceedings. It handles cases involving DUIs, drug offenses, theft, and assault. Legal representation extends throughout the pre-trial, plea negotiation, and trial phases. The practice also covers nearby communities such as Walnut and Pomona.

LO
21308 Pathfinder Rd # 105
The Law Office of James Perez, Esq.
Criminal Defense Lawyer · Diamond Bar, CA

The Law Office of James Perez, Esq. serves Diamond Bar and the surrounding communities of the San Gabriel Valley and Inland Empire. The practice handles a range of criminal defense matters, including DUI, drug offenses, assault, and theft charges. Each case is approached with a focus on examining the evidence and challenging procedural errors. The lawyer works to negotiate favorable plea deals or prepare a rigorous defense for trial.

CS
1360 Valley Vista Dr suite 140
Concord & Sage PC
Criminal Defense Lawyer · Diamond Bar, CA

Concord & Sage PC distinguishes between defense for a single charge and ongoing representation for multiple criminal matters, serving clients throughout Diamond Bar, CA. They handle a range of criminal defense cases from misdemeanors to felonies, including DUIs and drug offenses. The firm relies on thorough case review and strategic advocacy to navigate local court procedures. Their legal services are available on an as-needed basis for specific incidents or for scheduled representation through ongoing litigation.

PF
556 N Diamond Bar Blvd #300
The Pollard Firm, APC
Criminal Defense Lawyer · Diamond Bar, CA

During the unpredictable Southern California legal season, a charge can disrupt life in Diamond Bar without warning. The Pollard Firm, APC provides criminal defense representation for those facing these serious allegations. Their attorneys work to challenge evidence, negotiate on behalf of clients, and pursue the most favorable outcome for each case. Thorough knowledge of local courthouse procedures informs every strategy they develop. An initial case review with the firm begins by examining the charges and identifying all available legal options before moving forward.

AL
21671 Gateway Center Dr #108
Apex Lawyers
Criminal Defense Lawyer · Diamond Bar, CA

Apex Lawyers provides focused criminal defense services for clients in Diamond Bar, California. It handles specific charges such as DUI, drug offenses, theft, assault, and white-collar accusations. The firm also offers general representation for misdemeanor and felony cases throughout the local court system. Its work involves negotiating with prosecutors, filing pretrial motions, and preparing cases for trial. As the holiday season approaches with increased traffic enforcement and social gatherings, the firm assists individuals facing DUI arrests or alcohol-related citations.

WL
21700 Copley Dr
Weber Law | Criminal Defense Lawyers
Criminal Defense Lawyer · Diamond Bar, CA

Weber Law | Criminal Defense Lawyers provides legal representation to individuals facing criminal charges in Diamond Bar and the surrounding areas. The firm handles a broad range of criminal defense matters, including felonies and misdemeanors, by building strategic arguments for trial or negotiation. Its specialty work covers protective orders and post-conviction relief. Many local clients include office professionals, warehouse workers, and those involved in food service operations who need knowledgeable court guidance.

MW
22632 Golden Springs Dr UNIT 115
Michael W. Brown, LLP Attorney at Law
Criminal Defense Lawyer · Diamond Bar, CA

Michael W. Brown, LLP Attorney at Law serves residential clients facing criminal charges in Diamond Bar and the surrounding areas. The firm also provides legal representation for commercial clients involved in criminal matters throughout local jurisdiction. This office handles cases requiring strong defense strategies and thorough knowledge of California criminal procedure. Clients often return for ongoing legal support after their initial cases are resolved, maintaining a relationship for potential follow-up matters between regular court appearances.

ED
20955 Pathfinder Rd #100
Eric D. Davis, Attorney at Law
Criminal Defense Lawyer · Diamond Bar, CA

Eric D. Davis, Attorney at Law, is known for providing criminal defense representation to clients in Diamond Bar, California. The firm handles a broad range of criminal matters, from misdemeanors to serious felony charges, assisting clients throughout the local court system. Mr. Davis works to protect clients’ rights during police investigations and court proceedings. The practice also offers specialized support for DUI defense, helping clients navigate the specific legal hurdles associated with driving under the influence charges.

AT
1370 Valley Vista Dr Suite 200
ALL Trial Lawyers - Car Accident Attorneys
Criminal Defense Lawyer · Diamond Bar, CA
(866) 811-4255
alltriallawyers.com
LO
20657 Golden Springs Dr UNIT 209
The Law Offices of Fang Chen
Criminal Defense Lawyer · Diamond Bar, CA
(626) 512-8990
fangchenlaw.com
LO
1370 Valley Vista Dr Suite 200
Law Offices of David Chesley
Criminal Defense Lawyer · Diamond Bar, CA
(909) 396-0833
chesleylawyers.com
LO
402 S Prospectors Rd Suite F
Law Office of Michael Yap
Criminal Defense Lawyer · Diamond Bar, CA
(626) 890-2939
mywcattorney.com
FH
21700 Copley Dr # 280
Flader & Hirji, LLP
Criminal Defense Lawyer · Diamond Bar, CA
(909) 895-3444
fhlaw1.com
LO
3333 S Brea Canyon Rd STE 213
Law Office of Heena Patel
Criminal Defense Lawyer · Diamond Bar, CA
(714) 455-9937
heenapatellaw.com

What Does a a Criminal Defense Lawyer in Diamond Bar Cost?

The cost of hiring a criminal defense lawyer in California varies significantly based on the severity of the charges and the complexity of the case. For misdemeanors such as petty theft, simple assault, or first-time DUI, retainer fees generally fall between $1,500 and $5,000. Felony cases like burglary, drug trafficking, or assault with a deadly weapon typically require retainers of $5,000 to $15,000, while serious felonies including murder, rape, or large-scale white collar fraud can demand $15,000 to $50,000 or more. Many attorneys offer flat fee arrangements for specific services, such as $1,500 for a DMV hearing or $3,000 for a standard plea negotiation. Hourly rates range from $300 to $800, with complex cases requiring hundreds of hours of work. Payment plans are common, often requiring an initial retainer of 50 percent with the balance paid in monthly installments over three to six months. Some firms accept credit cards or offer financing through third-party legal lenders.

This information is general in nature and does not constitute legal advice. Costs and fee structures can vary widely between attorneys and are subject to change based on case specifics, court schedules, and individual attorney policies. You should always discuss fees and payment arrangements directly with any attorney you consider hiring.

About criminal defense lawyers in Diamond Bar

When facing criminal charges in Diamond Bar, California, the stakes could not be higher. The criminal justice system in this Los Angeles County community handles a wide spectrum of offenses, from misdemeanors such as petty theft and simple assault to serious felonies including armed robbery, drug trafficking, and sexual assault. Misdemeanors carry potential jail time of up to 364 days in county jail, while felonies can result in state prison sentences ranging from 16 months to life. White collar crimes like embezzlement, fraud, and identity theft are increasingly prosecuted in Diamond Bar, often involving complex financial evidence and potential restitution orders in the tens of thousands of dollars. Drug offenses range from simple possession under Health and Safety Code Section 11350 to sales and transportation charges under Section 11352, with penalties escalating dramatically based on drug type and quantity. Assault and battery charges under Penal Code Sections 240 and 242 can become aggravated assault or battery causing serious bodily injury under Section 243(d), carrying up to four years in prison. Theft offenses span petty theft under Section 484 (misdemeanor) to grand theft over $950 (felony), while weapons charges under Penal Code Section 25400 for concealed carry or Section 30600 for assault weapons carry mandatory minimum sentences. Sex offenses, including those under Penal Code Sections 261 (rape) and 288 (lewd acts with a minor), require mandatory sex offender registration under Penal Code Section 290, a consequence that lasts a lifetime.

California state law imposes some of the most stringent sentencing guidelines in the nation. The Three Strikes law under Penal Code Sections 667 and 1170.12 means a second serious or violent felony conviction doubles the sentence, while a third strike results in 25 years to life in prison. Mandatory minimum sentences apply to many drug offenses, such as a three-year minimum for selling heroin under Health and Safety Code Section 11352, and a five-year enhancement for prior drug trafficking convictions under Section 11370.2. The state penal code also includes specific sentencing enhancements for gang-related crimes under Section 186.22, which can add 10 years to a sentence, and for using a firearm during a felony under Section 12022.53, which adds 10, 20, or 25 years to life depending on the circumstances. Probation in California can be formal (supervised by a probation officer) or informal (court supervision only), with terms typically lasting three to five years for felonies. Parole applies to state prison releases, with parole terms ranging from one to five years, and parole violations can result in immediate return to custody for up to 12 months under Section 3056.

Every person accused of a crime in Diamond Bar retains fundamental constitutional protections. The Sixth Amendment guarantees the right to counsel, meaning if you cannot afford an attorney, one must be appointed at public expense. This right attaches at all critical stages, including arraignment, preliminary hearings, and trial. Miranda rights under the Fifth Amendment require law enforcement to inform you of your right to remain silent and your right to an attorney before custodial interrogation. Any statements made without a valid Miranda waiver may be suppressed. The Fourth Amendment protects against unreasonable searches and seizures; law enforcement generally needs a warrant supported by probable cause to search your home, vehicle, or person. Exceptions include consent, exigent circumstances, and searches incident to lawful arrest. The right to a speedy trial under the Sixth Amendment and California Penal Code Section 1382 requires that a felony trial commence within 60 days of arraignment, or the charges may be dismissed. Bail and bond procedures in Diamond Bar follow California law, with bail amounts set according to the county bail schedule. For example, a standard DUI carries a $5,000 bail, while a residential burglary may be set at $50,000. A bail bondsman typically charges a non-refundable premium of 10 percent of the total bail amount.

The criminal process in California follows a defined timeline from arrest to potential appeal. After arrest, booking occurs at the local jail, where fingerprints, photographs, and personal information are recorded. For most felony arrests, arraignment must occur within 48 hours, excluding weekends and holidays. At arraignment, the charges are read, the defendant enters a plea of guilty, not guilty, or no contest, and bail is set or reviewed. A bail hearing can be requested to argue for lower bail or release on own recognizance. Pretrial motions follow, including motions to suppress evidence under Penal Code Section 1538.5, motions to dismiss under Section 995 for insufficient evidence at the preliminary hearing, and discovery motions to obtain police reports and witness statements. Plea negotiations often occur during this phase, with prosecutors offering reduced charges or sentencing recommendations in exchange for a guilty plea. If no plea agreement is reached, the case proceeds to trial, which can be a jury trial of 12 people for felonies or a bench trial before a judge. Sentencing occurs after a conviction, with the judge imposing a sentence within statutory ranges, including probation, jail, prison, fines, and restitution. Appeals must be filed within 60 days of the judgment under California Rules of Court, Rule 8.308, and can challenge legal errors, ineffective assistance of counsel, or improper sentencing.

Hiring a criminal defense lawyer in Diamond Bar involves significant financial considerations. Retainer fees vary widely by case severity and complexity. For a standard misdemeanor DUI, retainer fees typically range from $2,000 to $5,000. Simple misdemeanor theft or drug possession cases may cost $1,500 to $3,500. Felony cases start at $5,000 and escalate quickly: a residential burglary may require a $10,000 to $15,000 retainer, while serious felonies like armed robbery or sexual assault can demand $15,000 to $25,000 or more. White collar cases involving extensive document review and expert witnesses often require retainers of $20,000 to $50,000. Public defenders are available at no cost to those who qualify financially, but they carry heavy caseloads, often exceeding 150 cases per attorney, which can limit individualized attention. Private attorneys typically offer flat fees for specific services, such as $1,500 for a DMV hearing in a DUI case, or hourly rates ranging from $300 to $800 per hour for ongoing representation. Some attorneys offer payment plans, requiring an initial retainer followed by monthly installments. Many firms accept credit cards, and some offer financing through third-party legal funding companies. It is important to ask about additional costs such as filing fees, expert witness fees, investigator costs, and copying expenses, which are not always included in the retainer.

Local factors in Diamond Bar significantly influence criminal defense strategy. The Los Angeles County Superior Court, Pomona Courthouse, handles most felony and misdemeanor cases from Diamond Bar. This courthouse has a reputation for a high volume of cases, with judges often managing crowded calendars and encouraging early resolution through plea agreements. The Los Angeles County District Attorneys Office, specifically the Pomona branch, tends to take a firm stance on gang-related offenses, drug trafficking, and domestic violence cases, often seeking maximum sentences. Diversion programs are available for certain first-time offenders, such as drug diversion under Penal Code Section 1000 for non-violent drug possession charges, which allows for dismissal upon successful completion of education and treatment. The Los Angeles County Drug Court program offers an alternative for eligible defendants with substance abuse issues, providing intensive supervision and treatment in lieu of incarceration. Mental health courts under Penal Code Section 1001.36 provide diversion for defendants with diagnosed mental health disorders who commit non-violent offenses. The local jail conditions at the Los Angeles County Jail system, including the Men’s Central Jail and Twin Towers facility, are frequently overcrowded, with average stays for pretrial detainees ranging from 30 to 90 days. This overcrowding can sometimes work in a defendant’s favor, as judges may be more inclined to grant release on own recognizance or lower bail to reduce jail population.

Frequently Asked Questions

How does California’s Three Strikes law apply to criminal cases in Diamond Bar?

California’s Three Strikes law under Penal Code Sections 667 and 1170.12 applies to any felony committed in Diamond Bar. A second serious or violent felony conviction doubles the standard sentence, while a third strike results in a mandatory sentence of 25 years to life in prison. Many prior convictions from other states can count as strikes if they are substantially similar to California’s serious or violent felonies. This law has been modified by Proposition 36 in 2012, which requires the third strike to be a serious or violent felony for the life sentence to apply, unless the prior strikes were for certain offenses like murder or rape.

What are typical costs for hiring a criminal defense lawyer in Diamond Bar for a DUI case?

For a standard first-time DUI misdemeanor in Diamond Bar, retainer fees typically range from $2,000 to $5,000. This often covers all court appearances, DMV hearing representation, and plea negotiation. More complex cases involving accidents, injuries, or high blood alcohol content (over 0.15 percent) can cost $5,000 to $10,000. Many attorneys offer flat fees for DUI cases, with payment plans requiring an initial deposit of 50 percent and the remainder due before trial. Additional costs may include DMV hearing fees of $125 and court-ordered fines ranging from $390 to $1,000.

How long does the criminal process take from arrest to trial in Diamond Bar?

From arrest to trial in Diamond Bar, the timeline typically spans three to six months for misdemeanors and six to twelve months for felonies. Arraignment occurs within 48 hours of arrest, followed by a preliminary hearing within 10 court days for felony cases where the defendant is in custody. Pretrial motions and plea negotiations usually take two to four months. If a case goes to trial, it can take an additional one to three weeks for jury selection and testimony. Appeals must be filed within 60 days of the final judgment under California Rules of Court.

Criminal Defense Lawyers in Other California Cities

Listings are compiled from publicly available information. Inclusion does not constitute endorsement. Verify each criminal defense lawyer's current standing with the State Bar of California.