Founding Member of DUI Defense lawyers Association- Fresno Attorney Jonathan Rooker| Fresno Criminal Defense & DUI Attorney

Fresno DUI and Criminal Defense Attorney Jonathan Rooker is a founding member of a nationwide DUI DefenseLawyers Association.  The newly created DUI Defense Lawyers Association  (DUIDLA) includes over 300 of the most educated DUI lawyers in the Nation!  Jonathan Rooker Feels that the ideals of DUIDLA, being rooted in higher education, continuing education, and science are of unique importance to defending DUI's and other science based criminal defense cases.

Breath Alcohol Content v. Blood Alcohol Content:

Many lawyers understand what a partition ration is, but few can tell you what assumptions and facts are used in calculating a partition ration.  The breathalyzer or breath machine, uses several assumptions while estimating what a person's blood alcohol content is.  Hematacrit levels, breath temperature, calibration, proper use of the machine, absorption, distribution, and elimination of alcohol from the body and the rates at which it occurs.

Blood Alcohol Testing:

Blood samples are tested by Gas Chromatogrpahy.  This method, when done properly can be very accurate.  However, the machine does not know what alcohol is.  It can only be identified by proper separation of molecules, and finding out the retention time for alcohol.  Then, any volatile substance that exits the machine at a certain time is presumed to be alcohol.  However, at no point in time has every volatile substance being tested to see if any have the same elution time as alcohol.  There are many human factors involved in testing, and understanding them is important to a defense lawyer who wants to properly defend a DUI case involving a blood sample.

Jonathan is very proud to be a founding member of the DUIDLA, and organization rooted in defending clients accused of DUI by use of knowledge, science, education, effort, and skills.  The members of the DUIDLA include the who's who of DUI defense lawyers from across the nation.  Having my name associated with an organization and members of this caliber is an achievement I am very proud of.

Fresno DUI Attorney | Madera DUI Attorney If you've been cited, you need to know what to do next. Help your attorney help you, contact me as soon as possible

Glass chess

Fresno DUI Lawyer Jonathan Rooker: Fresno area law enforcement agencies have some of the strictest DUI enforcement policies in the Nation. The first decision an officer makes during the DUI enforcement is the decision to stop the vehicle. It may be a driving pattern, maintenance infraction, tinted windows, or other issues the lead the officer to make that decision. The next decision is whether to have the driver exit the vehicle and conduct a DUI investigation. Factors include odor or alcohol, red watery eyes, and slurred speech. Timely stopping, parking, and fumbling with a license or insurance paperwork, all influence the officers decision to continue the investigation. Once outside the vehicle the subject may sway or have trouble following directions. At the conclusion of the third stage, the officer decides if there is probable cause for an arrest. If you are arrested, there are steps you should take on your own behalf. It is important for anyone cited for DUI to contact the DMV within 10 days to preserve their right to an Admin Per Se Hearing in front of a DMV officer. Failure to contact the DMV within 10 days may result in the suspension of your driving privilege. Remember, the officer arrests at probable cause, but it takes proof beyond a reasonable doubt to convict. If the officer does their job right, a large percentage of the people should be found not guilty.

Fresno Criminal Defense Attorney: Sometimes good people need help during tough times

D v

Fresno & Madera Criminal Defense Lawyer Jonathan Rooker: Domestic Violence (DV) charges, punishments, and your rights is something you need to understand if you've been accused. DV charges can result in a sentence of probation, jail, and/or prison. DV can be charged under various sections including PC 243(E) or the more serious PC 273.5 Felony (DV) accusation. Many convictions result in being sentenced to a 52-week program, referred to as the Batterers Treatment Program (BTP). The right to own, possess, or use a Firearms, a serious issue for many people who grew up in the rural valley hunting, fishing, and target shooting can be lost forever. While Judges routinely advise those convicted of misdemeanor Domestic Violence that they will be prohibited from owning firearms for 10-years, the Federal Government will preclude gun ownership for the remainder of the persons life if they are convicted of a misdemeanor crime of domestic violence. It is important that the court knows you are a law abiding, upstanding, and productive member of society. Don't let an accusation turn into a lifetime of being stigmatized as a criminal.

"Criminal defense is about helping good people, that is what I do." Jonathan Rooker


Experienced Fresno and Madera County Criminal Defense Attorney Jonathan Rooker understands the needs of each client are quite unique to each individual client. Some clients are looking to keep their drivers license, others are looking to avoid long periods of incarceration. Many times pride and principles are cited for the client's motivation to achieve a particular resolution to their case. Many clients just want to put their life, family, and career back together. It is the responsibility of the defense attorney to coordinate and effective defense for the benefit of the client. It is essential that I provide the best defense for the individual person and their specifically tailored needs in life. I will help you by building the best defense that the facts allow. One important aspect of hiring a private attorney is the time they spend listening to your needs, and working to obtain an effective resolution under the circumstances. When these problems arise, it's time to reach out for a helping hand. I handle criminal defense cases on a daily basis, helping people with their issues. Let me help you.