Nationwide & International
Judge Mary Celeste (Ret.)
(303) 501-3242
Presentations & Webinars
Topic Areas
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Drugged Driving
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Marijuana and Driving - Youth and Marijuana
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The Use of Science and Technology in Specialized Treatment Courts
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The Legal History of MJ…Toxicology…Neuroscience of Marijuana
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DREs and Toxicologists as Experts in MJ Driving Cases
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The Admissibility of Oral Fluid Testing in Court
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Specialized Treatment Courts: What Are They?
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Risk Assessment Tools in Alcohol Cases: Which Monitoring Tool is Right
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Constitutional and Ethical Issues in Drug/DWI Courts
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The MJ Driving Case from Soup to Nuts
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The Future of Implied Consent Laws
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McNeeley and Blood Testing
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The Structure of Courts: Who Are the Gatekeepers
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Marijuana Laws and Its Impact On Specialty Courts
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Expert Testimony in Marijuana Driving Impairment Cases
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Marijuana Toxicology
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Marijuana and its Impact on the Law
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Marijuana in the Workplace
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Drug Recognition Experts
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The Use of Science and Technology to Monitor and Detect Alcohol and Drugs
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Drug and Alcohol Testing
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Witness Creditability
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Per Se Marijuana Driving Laws
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Marijuana Around the Globe
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Drugged Driving and its Impact on DWI Courts
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Marijuana and its Impact on DWI Courts
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The Use of the Toxicologist in the Courts
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Service of Process
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The Use of Ignition Interlock Devices to Reduce Recidivism and Crash Fatalities
Providing Professional Presentations
My presentations and webinars have been conducted nationwide and I have presented to attorneys, law enforcement, drug court professionals, toxicologists, academia, policy makers, and judges.
Judge Mary A. Celeste (ret.) sat on the Denver County Court bench 2000-2015. She was the Presiding Judge 2009-10 and the co-founder of the Denver County Court Sobriety Court. She is currently a law school professor teaching Marijuana and the Law at California Western School of Law and is considered a national content expert on the topic of cannabis. She is a former member of the Judicial Advisory Board for the Foundation for the Advancement of Alcohol Responsibility (FAAR); Faculty for the National Association of Drug Court Professionals (NADCP) and the National Judicial College (NJC). She has also served as the past chair of ABA National Conference of Specialized Court Judges; the President of the American Judge’s Association and the Colorado Women’s Bar Association Foundation, and, as a National Highway Traffic Safety Administration (NHTSA) Judicial Outreach Liaison. She has written many articles and is a national speaker on the topics of marijuana; marijuana and drug impaired driving, drugged driving, and specialty courts.
She has presented to AJA; ALA; NEADCP, NADCP, APPA, AJA, ABA, DATIA, NHTSA, NEADCP, Lifesavers, Pennsylvania DUI Association, Michigan and Louisiana Association of Drug Court Professionals and to Judges, Attorneys; Specialty Court Conferences, and Safety Highway Offices in the States of Arizona, Arkansas, Colorado, Florida, Georgia, Illinois, Indiana, Kansas, Pennsylvania, Maine, Massachusetts, Michigan, Nebraska, Nevada, New Mexico, North Carolina, North Dakota, Oklahoma, Texas, Utah, Washington, Wyoming, U.S. Territories, and in Canada.
Previous Presentations
Oklahoma County PD Office
Oklahoma Dept. MHSA, Criminal Justice Div.
The Legalization of Marijuana & Hemp & Its Impact on the Courts
December 5-7, 2023
U.S Silica
Marijuana, CBD & Hemp Derivatives in the Workplace
Katy Mills, Texas
September 25, 2023
NADCP
Cannabis Driving & Testing
Houston, Texas
June 27, 2023
NADCP
But I Thought I was Using a Legal Drug: The Complex World of Hemp Derivatives Like CBD and Delta 8 Houston, Texas
June 27, 2023
SHRM
Marijuana, CBD & Hemp Derivatives in the Workplace
Las Vegas, Nevada
June 11, 2023
ISASIC
Webinar
History of Cannabis in the U.S.
May, 2023
SUNY
Legal History & Neuroscience Cannabis
Webinar
September 7, 2022
American Probation & Parole Association
The Legalization of Hemp and Its Impact on Testing & Law Enforcement Chicago, Illinois
August 28-30, 2022
NADCP RISE
The Use of Medical Marijuana & CBD in the Courts
Nashville, TN
July 22, 2022
New England Addiction Technology Transfer Center Brown University School of Public Health
The Commercialization of Cannabis
Marijuana, CBD & Drug Courts
May 4, 2022
National Interdisciplinary Cannabis Symposium
California Western School of Law, San Diego California
Use of Medical Marijuana in Treatment Courts
May 20-22, 2022
DATIA Conference
Louisville, Kentucky
The Legalization of Hemp & Its Impact on Testing
March 30, 2022
Nevada Limited Jurisdiction Judges Winter Seminar
Las Vegas, Nevada
What is New in Cannabis & Driving
January 25, 2022
Seton Hall University
Legislative Journal Cannabis Law Symposium
Cannabis and the Fourth Amendment Search & Seizure
Virtual
Feburary 4, 2022
Behavioral Health Professionals Maine
Medical Marijuana and Treatment Courts
September 15, 2021
New Mexico Judicial Conclave
Institute of Public Law UNM School of Law
The Colorado Experience: The Impact of New Marijuana Laws New Mexico
September 23, 2021
American Probation & Parole Association
The Use Medical Marijuana in the Courts
VIRTUAL on Demand
August 24-28, 2020
North Dakota Association for Justice
Fargo, N.D.
Marijuana Search & Seizure; Marijuana Legal History, Neuroscience, Toxicology VIRTUAL
September 24, 2020
Pacific Judicial Council (PJC)
11/6/20 The Legal History; Neuroscience, Pharmacokinetic and Toxicology of Cannabis and Alcohol; 11/20/20 Drugged Driving;
November 6 & 20 2020
American Judges Association
Standard Field Sobriety Testing in Impaired Driving Cases Webinar
May 13, 2020
AJA/Illinois Judges Marijuana & Driving
Panel Moderator
Chicago, Illinois
September 16, 2019
NADCP
Cannabis Driving Update, Marijuana and the Youth; Drug Court Judges Breakout; Drug/DUI Court Breakout Panel, Washington, D.C.
July 14-17, 2019
NADCP
State Bar Association of North Dakota, Marijuana & the Youth; Cannabis & Driving, June 12, 2019,Fargo, North Dakota
June 12, 2019
New Mexico Municipal Judges Conference
The Impact of marijuana Legalization on the Courts
Angel Fire, New Mexico
May 1, 2019
DATIA
Cannabis Driving Update
Chicago, Illinois
April 11, 2019
New England Association of Drug Court Professionals (NEADCP)
Marijuana Update, Marlborough, Massachusetts
November 29, 2018
Nevada Administration of the Courts Conference
Marijuana and Opioids and Their Impact on Specialty Courts, Sparks, Nevada
November 9, 2018
American Judges Association (AJA)
Marijuana and the Youth, Kauai, Hawaii
September 25, 2018
American Trucking Associations (ATA)
Marijuana: Legal Strategies to Stay Legal and Operational, Santa Ana Pueblo, New Mexico
July 17, 2018
American Trucking Associations (ATA)
National Council of Juvenile and Family Judges, Keynote Closing Plenary, Marijuana and Its Impact on the Juvenile Justice System, Denver, Colorado
July 25, 2018
New Mexico Judicial Conclave
Drugged Driving, Albuquerque, New Mexico
June 7, 2018
Drug & Alcohol Testing Industry Association (DATIA)
MAT and Its Impact on Testing in Drug Courts, New Orleans, Louisiana
May 24, 2018
National Association of Drug Court Professionals (NADCP)
Judges - Adult and DWI Treatment Courts, Houston, Texas
May 30, 2018
National Association of Drug Court Professionals (NADCP)
Legal Issues, Ethics and Confidentiality Ask the Expert Table, Houston, Texas
June 2, 2018
Association of Legal Administrators, (ALA)
Marijuana in the Workplace: A Practcum Workshop, National Harbor, Maryland
May 5, 2018
American Probation & Parole Association, (APPA)
Cannabis & Driving, Houston, Texas
January 22, 2018
New England Association of Drug Court Professionals (NEADCP)
Marijuana and the Youth, Marlboro, Massachusetts
November 29, 2017
National Association for Court Management, (NACM)
Marijuana & the Youth, New Mexico Judicial Education Center, Drugged Driving, September 27, 2017, Sante Fe, New Mexico
February 12, 2018
NASRO School Safety Conference
Youth and Marijuana, Washington DC.
July 26, 2017
National Association of Drug Court Professional (NADCP)
Washington, D.C., Marijuana Laws and Their Impact on Specialty Courts
July 10, 2017
National Association of Drug Court Professional (NADCP)
The Use of Medical Marijuana for Veterans with PTSD in Veteran's Courts, Washington, D.C.
July 11, 2017
National Association for Court Management (NACM)
The Legal History, Neuroscience and Toxicology of Marijuana: What the Justice System Needs to Know, Washington, D.C.
July 12, 2017
Colorado Collaborative Justice Conference
The Legal History, Neuro-science & Toxicology of Marijuana, Denver, Colorado
May 31, 2017
Colorado Collaborative Justice Conference
Marijuana & Opioids and Their Impact on Specialty Courts, Denver, Colorado
June 1, 2017
Kansas Judicial Conference
Cannabis & Driving, Topeka, Kansas
June 9, 2017
Michigan Association of OWI Attorneys & State Bar of Michigan Marijuana Law Section
The Legal History, Neuroscience & Toxicology of Marijuana, East Lansing, Michigan,
May 12, 2017
Michigan Association of OWI Attorneys & State Bar of Michigan Marijuana Law Section
Marijuana & Driving, East Lansing, Michigan
May 13, 2017
Michigan Court Administrators Association (MCAA)
What Court Administrators Need to Know About Marijuana Driving Cases, Thompsonville, Michigan
May 19, 2017
Association of Legal Administrators
Marijuana in the Workplace, Denver, Colorado
April 5, 2017
Texas Association of Specialty Courts
Marijuana Laws & Its Impact on Specialty Courts, Austin, Texas
April 10, 2017
Arkansas Drug Court Conference
Marijuana Laws & Its Impact on Specialty Courts, Little Rock Arkansas
April 12, 2017
LifeSavers Conference
The Legal History, Neuro-science and Toxicology of Marijuana, Charlotte, North Carolina
March 26, 2017
ABA Traffic Seminar
The Legal History, Neuro-science & Toxicology of Marijuana, Savannah, Georgia
March 7, 2017
Texas Center for the Judiciary's Criminal Justice Conference Drugged Driving Update
Austin, Texas
February 10, 2017
North Dakota Drugged Driving Summit
Cannabis & Driving, Bismarck, North Dakota
December 1, 2016
Arizona DUI Conference
Marijuana & Driving, Tempe, Arizona
December 2, 2016
New England Association of Drug Court Professionals
Marijuana and Driving, Marlboro, Massachusetts
November 16, 2016
Nevada State Court Conference
Marijuana Laws and the Effects on Specialty Courts
November 4, 2016
Oklahoma Judiciary
Cannabis & Driving, Oklahoma City, Oklahoma
November 2, 2016
Oklahoma Judiciary
Legal History, Neuro-science and Toxicology of Marijuana, Oklahoma City, Oklahoma
November 2, 2016
Colorado Bar Association
DUID Advanced Practice, The Fallacies of Colorado’s 5 Nanogram Inference in DUID Cases, Denver, Colorado
October 20, 2016
American Judges Association (AJA)
Cannabis: The Greening of North America, Toronto, Canada
September 26, 2016
American Probation & Parole Association, (APPA)
Reducing Impaired Driving Recidivism with IID Use, Cleveland, Ohio
August 29, 2016
Institute of Continuing Judicial Education of Georgia
Cannabis & Driving, St. Simons Island, Georgia
June 23, 2016
Colorado Highway Safety Summit
The History, Neuroscience and Toxicology of Marijuana, Keystone, Colorado
June 8, 2016
National Association of Drug Court Professional (NADCP)
The Nuts and Bolts of Alcohol & Other Drug Testing in Specialized Treatment Courts, Witness Creditability, Anaheim, California
June 1, 2016
Drug and Alcohol Testing Industry Association, (DATIA)
The Greening of America: How Marijuana is Changing the Legal Landscape, Las Vegas, Nevada
April 24, 2016
The Expert Institute Webinar
Driving Under the Influence of Marijuana
April 21, 2016
Texas Municipal Courts Education Center
Marijuana & Driving, Dallas, Texas
March 20, 2016
Texas Municipal Courts Education Center
Marijuana History, Neuroscience & Toxicology, Dallas, Texas
March 20, 2016
American Bar Association Traffic Court Seminar
Cannabis & Driving, New Orleans, Louisiana
March 17, 2016
Michigan Association of Treatment Court Professionals
Marijuana History, Neuroscience & Toxicology, Grand Rapids, Michigan
March 15, 2016
Michigan Association of Treatment Court Professionals
Marijuana and Driving, Grand Rapids, Michigan
March 15, 2016
Michigan Association of Treatment Court Professionals
The Use of Science & Technology in Specialized Treatment Courts, Grand Rapids, Michigan
March 15, 2016
ISCT
Specialized Treatment Courts, Dallas, Texas
February 20, 2016
ISCT
The Structure of Courts, Dallas, Texas
February 20, 2016
American Bar Association Webinar
Hot Topics in Specialized Courts, Coordinator & Moderator,
December 17, 2015
American Academy of Clinical Toxicology (AACT)
Cannabis Legal Panel, Denver, Colorado
December 9, 2015
American Academy of Clinical Toxicology (AACT)
Dos and Don’ts in Expert Testimony in Marijuana Driving Cases: Judicial Perspective, Denver, Colorado
December 9, 2015
Nebraska Highway Safety Office
Marijuana and Driving, Lincoln, Nebraska
December 8, 2015
National Center for DWI Courts (NCDC)
Training, Sharing & Due Process, El Paso, Texas, National Center for DWI Courts (NCDC) Training.
October 28, 2015
North American Congress of Clinical Toxicology (NACCT)
Marijuana Driving Laws, San Francisco, California
October 10, 2015
American Judges Association (AJA)
The Future of Per Se and Zero Tolerance Marijuana Laws, Seattle, Washington
October 6, 2015
National LGBT Bar Association
Romer and Its Progeny, Lavender Law Conference, Chicago, Illinois
August 6, 2015
National Association of Drug Court Professionals (NADCP)
Marijuana & Driving, National Harbor, Virginia
July 27, 2015
American Probation and Parole Association (APPA)
Alcohol Monitoring Based Upon Risk Assessment: Which Tool is Right, Los Angeles, California
July 12-15, 2015
Louisiana Association Drug Court Professionals
Neuro-Science and Toxicology of Marijuana, Lafayette, Louisiana
June 26, 2015
Municipal Courts Education Center
Drugged Driving Workshop, Austin Texas
March 29, 2015
Colorado Bar Association
Views From the Bench
October 23, 2014
National Center DWI Courts
Webinar Drugged Driving and Its Impact on DWI Courts
October 16, 2014
Colorado Impaired Driving Conference
Blood Draws; What Now After McNeely
September 22, 2014
Pennsylvania Highway Safety Office
Lunchtime Keynote Marijuana & Driving and The Use of Science & Technology to Detect and Monitor Drugs & Alcohol in Impaired Driving Cases
October 31, 2014
Colorado Judicial Conference
Blood Draws; What Now After McNeely
September 9, 2014
Colorado Judicial Conference
The Admissibility of Oral Fluid Testing
September 8, 2014
MADD
Florida, Marijuana Trials & Tribulations, Fort Lauderdale, Florida
August 1, 2014
MADD
No Refusal Workshop, Denver, Colorado, McNeeley & Implied Consent
July 8, 2014
NHTSA
TSRP Training, Cracking the Nut of the Judiciary
July 15, 2015
American Bar Associations (ABA)
Webinar Blood Draws; What Now After McNeely
June 26, 2014
National Association of Drug Court Professionals (NADCP)
Debunking the Myths of Marijuana
May 29, 2014
Colorado Collaborative Justice Conference
Marijuana and Its Impact on Drugged Driving
May 14, 2014
LifeSavers Conference
Marijuana and Driving: Trials and Tribulations
April 28, 2014
Utah Judges Association Drugged Driving
Utah Judges Association Drugged Driving
April 19, 2014
Colorado Creditors Bar Association
CLE, Garnishee Liability Hearings
April 4, 2014
American Bar Association (ABA)
Specialized Courts Webinar, Driving & Marijuana: Debunking the Myths
March 20, 2014
American Judges Association
The Legalization of Marijuana & Its Impact on the Law
September 2013
Colorado Judicial Conference
Drugged Driving and the Use of Science & Technology
September 2013
Colorado Judicial Conference
Garnishee Liability Hearings & Default Judgments
September 2013
NHTSA
JOL National Meeting, The Impact of Drugged Driving
September 2013
LifeSavers Conference
Role of the Judge in DWI Courts
March 2013
American Bar Association
Technology Webinar
March 2013
Michigan Association of Drug Court Professionals
Technology and Drugged Driving Presentation
March 2013
Colorado County Court Judges Association
Technology Presentation
March 2013
Nevada Safety Summit
Technology Presentation, Reno Nevada
2012
NHTSA
Joint Regional Conference TSRP/LEL Presentation
2012
American Judges Association
Technology Presentation
2012
Colorado Judicial Conference
Drug Recognition Expert Presentation
2012
Washington Judicial Conference (Spokane & Seattle)
Drugged Driving Presentation
2012
ABA Webinar
Drug Recognition Expert
2012
Colorado Collection Attorneys Association
Summit, Process of Service Presentation
2012
American Judges Association National Symposium Coordinator
American Judges Association National Symposium Coordinator
2012
Wyoming Circuit Judges Conference
NHTSA JOL Presentation
2011
Denver County Court
Civil Division, Post Judgment Remedies Presentation
2011
Denver County Court
Name Change Procedures Presentation
2011
Colorado Collection Attorneys Association
Practice in Denver County Court Presentation
2011
Teaching Vignettes
Denver District Attorney’s Office and Public Defender’s Office
2010
Colorado Women’s’ Bar Association
Convention Speaker
1994, 1996, 1998, 2005 & 2010; Judge in Residence 2011
Colorado Bar Association CLE Program
Colorado Bar Association CLE Program
2007
American Judges Association Coordinator/ Moderator Educational Program
Vancouver, Canda
2007
American Judges Association Coordinator/ Moderator Educational Program
New Orleans, Louisiana
2006
Colorado Women’s Bar Association Convention Panel
Colorado Women’s Bar Association Convention Panel
2006
American Judges Association Mid-Year Seminar
American Judges Association Mid-Year Seminar
2005
American Judges Association Coordinator/Moderator Educational Program
San Francisco, California
2004
Arapahoe County Bar Association
LGBT Issues, Las Vegas Nevada
2004
Colorado Women’s Bar Association, Coordinator/Moderator
Colorado Women’s Bar Association, Coordinator/Moderator
2004
Indiana Prosecuting Attorneys Council
Indianapolis, Indiana, Cannabis & Driving
VIRTUAL
June 17, 2020
American Probation & Parole Association
Boston, Mass., Medical Marijuana & The Courts
VIRTUAL
August 1, 2020
North Dakota Association for Justice
Fargo, N.D. Marijuana and the 4th Amendment Search & Seizure; Neuroscience, Toxicology & Testing Cannabis
September 24, 2020
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Judge Mary Celeste (ret.)
Presentation/Webinar Exemplar
The Legal & Legislative History of Cannabis
April, 2023