Montgomery County (PA) DUI Lawyer
Skilled & Local Drunk Driving Defense Attorney
If you’re facing a DUI charge in Montgomery County, I understand how overwhelming the situation can feel. The consequences reach far beyond just the legal case itself — your driver’s license, your employment, and your personal reputation may all be affected for years to come. But with the right legal guidance by your side, what feels like an insurmountable challenge today can become a manageable problem tomorrow. I’m committed to providing focused, local defense that prioritizes your rights first and helps you navigate the complexities of the legal system with confidence.
I represent clients across Montgomery County, including Norristown, King of Prussia, Lansdale, Blue Bell, Plymouth Meeting, and surrounding areas. Having worked extensively in these courts, I have a deep understanding of the local Magisterial District Courts, the Court of Common Pleas, and Montgomery County’s ARD department. This local insight allows me to craft defense strategies tailored specifically for Montgomery County, maximizing your chances for the most favorable outcome possible.
Local DUI Defense Experience That Matters
I’ve spent decades defending DUI for people just like you in Montgomery County, Pennsylvania. Whether your case is in Norristown, King of Prussia, Lansdale, Blue Bell, Plymouth Meeting, or beyond, I know the local judges, prosecutors, and court staff intimately. This experience means I understand the nuances of how your case will likely be handled in each courtroom, allowing me to anticipate prosecution tactics and respond strategically.
Every judge and courtroom has its own character and approach. I use that knowledge to your advantage, knowing which judges are more inclined to accept certain arguments, who tends to be tougher on first-time offenders, and where the best opportunities for negotiation and reduced penalties lie. My goal is not just to defend you but to do so with a nuanced, locally informed approach tailored specifically to Montgomery County, PA.
How I Help Montgomery County DUI Defendants
Proven Defense Strategies from A Former Prosecutor
Before defending DUI clients, I worked as a prosecutor handling DUI cases, giving me an insider’s perspective on how breathalyzer evidence, field sobriety tests, and traffic stops are constructed—and where common mistakes occur. This experience equips me to dissect the prosecution’s case with a critical eye and build a strong defense on your behalf.
I thoroughly analyze every piece of evidence, scrutinizing breath test results, the legality of the traffic stop, and potential procedural or constitutional violations. Identifying flaws in the prosecution’s case can often lead to suppression of key evidence or reduced charges. I’m prepared to go to trial when necessary, but I also know when negotiation and alternative resolutions serve your best interests.

Comprehensive DUI Representation
I handle the full spectrum of DUI charges, ensuring you have expert legal guidance regardless of your situation. My services include defense for:
For every client, I tailor my defense strategy to the specific facts and legal circumstances of their case, helping you understand your options and fight for the best possible outcome.
Challenging Evidence & Legal Violations
I leave no detail unexamined when defending your case. I carefully review the legality of the traffic stop, the accuracy and administration of field sobriety tests, the calibration and maintenance of breathalyzer machines, the accuracy of the blood testing procedures and any procedural or constitutional violations. Finding weaknesses or errors can lead to the exclusion of evidence or dismissal of charges.
I’m well-versed in Pennsylvania DUI laws and the scientific aspects of sobriety testing. Mistakes such as improper breath machine calibration or failure to observe required pre-test procedures can invalidate test results. I use this knowledge to build the strongest defense possible on your behalf.
ARD Navigation & Plea Negotiation
If you qualify as a first-time offender, you may be eligible for Pennsylvania’s Accelerated Rehabilitative Disposition (ARD) program. ARD is a diversion option that can lead to dismissal of charges and expungement of your record. I will guide you through every step of the ARD application and compliance process to help you meet all the requirements for a successful outcome.
If ARD isn’t an option or is denied, I focus on negotiating reduced charges or alternative sentencing options tailored to your needs. Whether that means probation instead of jail time, house arrest or lesser penalties, my experience dealing with local prosecutors helps me pursue outcomes that minimize the impact on your life.

Administrative Hearings to Protect Your License
Your driver’s license is often the most immediate concern after a DUI arrest. If PennDOT suspends your license, you only have 30 days to appeal and request a hearing to challenge that suspension. I help clients act quickly and provide skilled representation at these hearings to fight the suspension if appropriate. I also help clients obtain an Ignition Interlock License which allows them to drive legally during their suspension.
Maintaining your ability to drive is crucial to your work, family life, and independence. I thoroughly review all arrest reports, chemical test results, and PennDOT procedures to identify any grounds to contest the suspension. I’m here to protect your driving privileges and minimize disruption to your daily routine.
Understanding DUI Penalties in Pennsylvania
Scenario | Typical Penalty Range |
---|---|
First Offense DUI (.08–.099 BAC) | Probation up to 6 months, $300 fine, no license suspension |
First Offense High BAC (.10–.159 BAC) | 48 hours to 6 months jail, fines up to $5,000, 1 year license suspension |
First Offense Highest BAC (.16+ or refusal) | 72 hours to 6 months jail, fines up to $5,000, 1-year license suspension |
Second or Third Offense DUI | possible 90 days of jail or 1 year in State Prison, license suspension of 18 months or more. |
DUI causing injury or death | Serious felony charges with mandatory State Prison sentences |
Why Choose Petersen Law To Defend Your DUI Case?

First Steps After a DUI Arrest
- 1
Contact me immediately: Getting ahead of the situation is extremely important. We can start strategizing and getting ready to go to court. Also, you have only 30 days to appeal if you receive a suspension of your license—don’t wait.
- 2Document everything: Take detailed notes about the arrest—times, locations, breath test results, and officer statements.
- 3Avoid posting on social media: Anything you say online can be used against you during discovery. Always check with me before posting.
Taking these early steps helps protect your rights and strengthens your defense.
Frequently Asked Questions about DUI Arrests
Do I qualify for ARD?
If it’s your first DUI and there are no aggravating factors, you may qualify for the ARD program. I’ll evaluate your situation carefully and guide you through the application process.
Can I still drive after a DUI charge?
Yes. However, if you get convicted or placed on ARD and your BAC was .10 or higher you will most likely receive a suspension. I’ll help you navigate this process to maintain your driving privileges or to obtain an Ignition Interlock License which will allow you to drive legally during the suspension.
What if my BAC was .16 (or higher) or I refused testing?
High BAC and refusal cases carry harsher penalties and usually require ignition interlock devices. These cases are complex and need experienced defense.
Are field sobriety or breath tests reliable?
Not always. Errors in test administration, machine calibration, or medical conditions can affect results. I routinely challenge such evidence to protect your case.
Take Control of Your Case Now
A DUI charge in Montgomery County PA is serious — but it doesn’t have to control your future. Whether through ARD, motions to suppress evidence, plea negotiations, or trial defense, I am committed to minimizing penalties, protecting your license, and defending your reputation.
Call now for your free, confidential 24/7 consultation or fill out the contact form below for immediate help. Don’t wait, get ahead of the situation. Driver’s License deadlines are strict, and I’m ready to help you take the next step.