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Expertice

What is Blood Alcohol Concentration (BAC)?

Our clients facing Illinois DUI charges often ask us to explain Blood Alcohol Concentration (often referred to as Blood Alcohol Content or BAC). BAC is most commonly used as a measure of alcohol intoxication for legal purposes.

BAC is usually expressed as a percentage of ethanol in the blood in units of mass of alcohol per volume of blood. For example, a BAC of 0.08 means that there are 0.08 g of alcohol for every deciliter (100 milliliters) of blood.

Beginning July 1, 2019, a first offense of texting while driving will be charged as a moving violation in Illinois. Previously, a first cell phone violation was treated as a non-moving violation, and only second or subsequent texting violations counted against your driving privileges. The old law was in effect since 2014. Of course, fines and court costs also may be imposed under the new law. A conviction for a moving violation will count toward a driver’s license suspension as well as insurance premium increases.

It is important to note that the law doesn’t only apply to texting. Illinois law says that a person may not operate a motor vehicle on a roadway while using ANY electronic communication device.

The Illinois Secretary of State will suspend drivers over the age of 21 for three moving violation convictions within any 12-month period. For drivers under 21 years of age, a license suspension is imposed for just two moving violation convictions within a 24-month period.

The Illinois Secretary of State is cancelling large numbers of driver’s licenses and state IDs due to fraud. The Secretary of State processes and compares the photos of anyone who applies for or renews a driver’s license or state ID in a central digital database. Therefore, if you obtained a license or ID under a false name, date of birth or social security number, there is a high probability that the Secretary of State’s facial recognition system will flag your application.

While you may initially leave the facility with a temporary permit (paper license), the official plastic license or ID may never arrive. Months later, in it’s place, you may receive a Notice of Cancellation which indicates that you “committed a fraudulent offense in the making of an application” directing you to contact the Illinois Secretary of State Fraudulent Review Unit. In turn, the matter is turned over to a Secretary of State Police investigator. At that time, an in-person interview may be required.

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It isn’t unusual for the lawyers at The Davis Law Group, P.C. to work with individuals who committed the fraudulent offense a decade or two ago. These individuals may have previously renewed their driver’s license multiple times without any issues. The technology has changed over the years and allowed even very old instances of fraud to be uncovered.

The DUI defense attorneys at The Davis Law Group, P.C. often represent clients who were trying to be responsible and “sleep it off.” Unfortunately, this area of Illinois law is complex. In Illinois, it is unlawful for a person to be driving OR in actual physical control of a motor vehicle while under the influence.

Under Illinois law, the phrase “actual physical control” means that a person was in the vehicle with the ignition key and able to exercise physical control over the vehicle by starting the engine and causing the vehicle to move. It is not necessary that you be actually driving the vehicle.

This means if you are in your car and have the “ability” to start the car and cause it to move, you can be charged with DUI. If the car is parked, the engine is off, the keys are on the floorboard, and you are asleep, you still may be considered to have the “ability” to start the engine and cause the car to move.

According to Illinois statute 625 ILCS 5/15-112(a), police officers only need a reason to believe that a truck is overweight in order to pull over the driver and require them to submit to the weighing of their truck. The officer can use portable or stationary scales or, if not available, the officer can require that the vehicle be driven to the nearest available scale. If the driver refuses to stop and submit his vehicle and load to weighing or removes any part of the load prior to weighing, he will be charged with this offense and face fines. In such cases, the driver could also face charges of fleeing and eluding. CDL holders need to be careful to avoid any and all offenses due to the potential impact on their driving record, insurance and employment.

Overweight laws are put in place because of the potential damage to roadways caused by overweight commercial vehicles. Excessive weight on certain roadways, which are not built to sustain such weight, can cause wear and tear or major damage.

According to 625 ILCS 5/15-113, the amount of the fine for an overweight truck shall be calculated in accordance to the schedule below (note that additional court costs and surcharges are often added to the amount of the fine). Please note: overweight fines in the City of Chicago can be found under 9-72-080 of the Chicago Municipal Code.

Have you ever wondered what happens during a DUI arrest? While every DUI is different and varies based on a variety of factors, the following is a typical scenario for a DUI stop in Illinois:

  1. First, a police officer requests that the driver pulls over their vehicle. This can be a part of a DUI checkpoint, roadside safety check, response to a reported accident, traffic violation or if the officer has other reasonable cause or suspicion that the driver is under the influence (for more info, see our article Reasonable Suspicion and Probable Cause).

  2. The driver is asked to produce a valid driver’s license, car registration, and proof of insurance.


A DUI arrest can be a frightening experience. Criminal penalties, high fines and a loss a driving privileges can have a devastating effect on your personal and professional life.

The Davis Law Group, P.C. is recognized as a leading Illinois DUI defense firm. Our attorneys will analyze the facts of your case and determine the most appropriate strategy to ensure the best possible result. Our legal team’s unique and personalized approach focuses on our clients’ specific needs. We are here to help.

The DUI defense attorneys at The Davis Law Group, P.C. represent clients facing DUI charges throughout Illinois and the Chicagoland area. We primarily accept DUI cases in Cook County, Lake County and DuPage County. This includes Skokie Courthouse, Rolling Meadows Courthouse, The Daley Center, Bridgeview Courthouse, Markham Courthouse, Maywood Courthouse, Leighton Criminal Courts Building at 26th & California, the DuPage County Courthouse in Wheaton, and the Lake County Courthouse in Waukegan.

Effective January 1, 2016, the Secretary of State began to enforce a new law requiring that revoked drivers with 2 or more DUI convictions who were granted a restricted driving permit (RDP) after an administrative hearing, drive on a breath alcohol ignition interlock device (BAIID) for a period of 5-years before applying for full reinstatement.

Unfortunately, the Secretary of State made the decision to apply this law retroactively. As a result, applicants whose DUIs occurred before the effective date of the new law and, in many cases years, decades earlier, are subject to the new law, only because they failed to apply before the change in the law went into effect.

Many of our clients have asked for the reasoning is behind the law. The law was proposed by the Alliance Against Intoxicated Motorists (AAIM), which claimed that a study they had found demonstrated that until a person drives successfully for at least 5-years on a BAIID device, the chances that the person will return to abusive drinking is unacceptably high. However, further investigation demonstrates that the study relied on by AAIM says nothing of the sort.

In May 2015, Conor Vesper, a 20-year old college student, was arrested and charged with DUI. After his arrest, although he was still intoxicated, he posted bond and was released. Following his release, he was able to get behind the wheel of a friend’s car. When the police tried to pull him over again, he drove to his house where he took his own life.

In response, Illinois has now passed “Conor’s Law” which will take effect June 1, 2018. This new law provides that when a police officer arrests a person under the age of 21, who is under the influence of alcohol or drugs, including DUI, the officer is required to make a reasonable attempt to contact a responsible adult who is willing to take custody of the person before his or her release.

The new law also requires the officer to impound the car for a full 12 hours if the officer reasonably believes that a person under arrest for DUI is likely, upon release, to commit another DUI. Presumably, this will apply to a highly intoxicated person under arrest for DUI who has the means to post bond and be released while still intoxicated.

Under the Illinois summary suspension law, a driver who is arrested for DUI and has not had a prior DUI disposition within 5-years is considered a ‘first offender’. This is significant because if the driver is considered a first offender, he or she faces a shorter driver’s license suspension based on whether chemical testing is failed or refused (6-months vs. 12-months). Furthermore, a first offender is automatically eligible for driving privileges during the period of the suspension through use of an MDDP.

The Secretary of State’s office is behind a new proposal now pending in the Illinois legislature that will drastically change the definition of a first offender under the Illinois DUI summary suspension law.

The new legislation would triple what has been called the 5-year look-back to a period of 15-years. This means that if the prior DUI disposition occurred within 15-years, the driver would be considered a second (or subsequent) offender and would be subject to a substantially longer period of driver’s license suspension based on whether chemical testing is failed or refused (6-months vs. 1-year for failed testing and 1-year vs. 3-years for refused testing) and would be barred from receiving automatic driving privileges during the period of suspension.