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Chemical Breath Test Machines
Tuesday, April 09, 2024, 11:30 AM - 1:00 PM PDT
Category: Events

DATE:                                           Tuesday, April 9, 2024
TIME:                                             11:30 a.m. to 1:00 p.m.      

PRESENTER:                                Ed Barley, CDLA Expert & Forensic Toxicologist

TOPIC/PROGRAM:                       Chemical Breath Test Machines 

MCLE:                                            1.0 Credit Hours

COORDINATOR:                            Dr. Roger Andersen, CDLA Executive Director

COST:                                             FREE!

REGISTRATION LINK FOR CDLA MEMBERS:   https://www.californiaduilawyers.org/chemical-breath-test-machines


Ed Barley is a retired Senior Criminalist who worked with the Los Angeles County Sheriff’s Department. He has been working in forensic sciences since 1991 and as a private consultant since 3 2012. Ed has worked with both prosecution and defense attorneys. He has a BS in Biochemistry from the California State University Long Beach and currently lives in the Los Angeles area. Through consulting and testimony, he has assisted attorneys in obtaining an honest and fair resolution in hundreds of criminal and civil cases. Ed is a contract forensic toxicologist and has consulted on cases nationwide and has worked at both the federal and state levels. 

 Additional information about Ed and his expertise may be found at 

https://barley-forensic-consultant.com/ and Ed may be reached at [email protected]


In this one-hour webinar, CDLA Expert & Forensic Toxicologist Ed Barley will review the science behind the currently used chemical breath test machines: how they work, the margin of error, and the procedures that must be followed in using the machines. Ed will also cover how to interpret the accuracy and calibration logs that are provided by law enforcement agencies when defense attorneys are making an initial assessment of the case.