Breathalyzer 101 for Attorneys


CLE credits earned: 2 General Credits (WA 2 Law and Legal)

Ronald Henson-

The lecture is intended to be an introductory and wide breadth of breath alcohol testing. Breath alcohol testing devices will be discussed and analyzed. All devices in the United States will be discussed and include the technology used in each device. General operation, sample collection, method of analysis and interpretation of results will be discussed. Limitations of the results, common errors, and issues will also be covered.

William Pelarenos-

Attorneys that handle Alcohol-related D.U.I cases can expect to learn the proper protocol in the operation of the breathalyzer machines during pre-arrest and post-arrest breath alcohol concentration tests.

This course is co-sponsored with myLawCLE.

Key topics to be discussed:

Ronald Henson –
•   Manufacturers
•   Technology Used
•   Common errors
•   Technical issues

William Pelarenos –
•   Proper use of Preliminary Breath Tester (PBT) during the pre-arrest screening
•   The proper use of the Recording Breath Tester (RBT) and the EC/IR2 during the Post-arrest evidentiary breathalyzer test
•   Discovery of “errors and omissions” in proper protocol by the Breath Alcohol Operator(BAO)

Date / Time: September 1, 2021

•   2:00 pm – 4:10 pm Eastern
•   1:00 pm – 3:10 pm Central
•   12:00 pm – 2:10 pm Mountain
•   11:00 am – 1:10 pm Pacific

Choose a format:

•   Live Video Broadcast/Re-Broadcast: Watch Program “live” in real-time, must sign-in and watch program on date and time set above. May ask questions during presentation via chat box. Qualifies for “live” CLE credit.

•   On-Demand Video: Access CLE 24/7 via on-demand library and watch program anytime. Qualifies for self-study CLE credit. On-demand versions are made available 5 business days after the original recording date and are view-able for up to one year.
Closed-captioning available

Select your state to see if this class is approved for CLE credit.

Choose the format you want.


Original Broadcast Date: April 16, 2021

Ronald E. Henson, PhD_myLawCLERonald E. Henson, PhD

Ronald E. Henson, PhD is the Founder and Principal Consultant with Beron Consulting, with offices in Illinois and Florida. Dr. Henson is an independent drug and alcohol testing consultant, providing drug and alcohol testing evaluations, research, and expert testimony. He has been qualified as an expert in field sobriety testing, drug and alcohol testing, physiology, and pharmacology in criminal, civil, military and employment law cases across the United States.

Dr. Henson has served as a police officer, police administrator, a police academy instructor supervising the alcohol testing program at the University of Illinois, a college professor at multiple institutions, and as a Dean of Criminal Justice and Forensic Sciences. He has served on several advisory and research committees related to law enforcement and drug and alcohol testing using breath, blood, urine, saliva, hair, and field sobriety testing (for both drugs and alcohol). Clients have included fortune 500 companies, professional athletes (NBA & MLB), dignitaries, employee unions, and government entities.

William Pelarenos_myLawCLEWilliam Pelarenos

William Pelarenos is a nationally recognized DUI Expert Witness, a retired police officer and police academy training instructor in Illinois, a State Certified Standardized Field Sobriety Testing instructor and State Certified Breathalyzer Operator. He has testified in twenty DUI cases an expert witness in Illinois, West Virginia and even a case in Saipan (Commonwealth of the Northern Mariana Islands). He made over 900 DUI arrests during his police career; he taught over 400 police officers NHTSA standards and has been a presenter in four other attorney CLEs focusing on NHTSA standards, standardized field sobriety tests and breathalyzer machines. He analyzes DUI cases sent to him from lawyers all over the Country. He is also the author of the book “DUis Decoded” available on and his website is and twitter is @policeproject1 Contact Info: (708) 793-3980

Accreditation Policy

myLawCLE seeks accreditation for all programs in all states except, ME, VA, and WV. Each attending attorney/paralegal will receive a certificate of completion following the close of the CLE program as proof of attendance. In required states, myLawCLE records attorney/paralegals attendance, in all other states attorney/paralegal is provided with the approved CLE certificate to submit to their state bar or governing association.

    Automatic MCLE Approvals

All myLawCLE CLE programs are accredited automatically either directly or via reciprocity in the following states: AK, AR, CA, CT, FL, HI, ME, MO, MT, ND, NM, NJ, NY and VT. (AZ does not approve CLE programs, but accepts our certificates for CLE credit.)

    Live Video Broadcasts

Live video broadcasts are new live CLE programs being streamed and recorded for the first time. All of these programs qualify for “Live” CLE credit in all states except NV, OH, MS, IN, UT, PA, GA, and LA —these states require in-person attendance to qualify for “Live” CLE credit.

    “Live” Re-Broadcasts

“Live” Re-broadcasts are replays of previously recorded CLE programs, set on a specific date and time and where the original presenting speakers calls in live at the end of the event to answer questions. This “live” element allows for “live” Re-broadcast CLEs to qualify for “Live” CLE credits in most states. [The following states DO NOT allow for “live” CLE credits on re-broadcast CLEs: NV, OH, MS, IN, UT, PA, GA, and LA]


Many states allow for credit to be granted on a 1:1 reciprocal basis for courses approved in another mandatory CLE jurisdiction state. This is known as a reciprocity provision and includes the following states: AK, AR, HI, CT, FL, ME, MO, MT, ND, NM, NJ, and NY. myLawCLE does not seek direct accreditation of live webinars or teleconferences in these states.

I. Expert Witness Qualifications | 2:00-2:10
II. Use of PBTs in pre-arrest screening | 2:10-2:20
III. Use of RBTs and EC/IR2 in evidentiary breath tests | 2:20-2:35
IV. Proper protocol by the Breath Alcohol Operator (BAO) | 2:35-2:45
V. Errors and Omissions by BAO and Breathalyzer machine malfunctions | 2:45-3:00

VI. 3:00-3:10 Break

VII. Manufacturers | 3:10 -3:30
VIII. Technology Used | 3:30- 3:45
IX. Common errors | 3:45 – 3:55
X. Technical issues | 3:55 – 4:10