Memberships

• National College for DUI Defense, Regent
• Oklahoma Super Lawyers 2006, 2007, 2008, 2009, 2010, 2011, 2012,2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
• Litigation Counsel of America-Fellow and state delegate
• Best Lawyers
• Martindale-Hubbell-AV rated
• National Trial Lawyers-Top 100 Lawyers
• National College for DUI Defense—Board Certified
• National College for DUI Defense—Sustaining Member
• National Association Criminal Defense Lawyers
• Northeastern State University, Adjunct Professor
• University of Oklahoma, Adjunct Professor
• Taurida University, Kiev, Ukraine  Adjunct Professor
• BankingUniversity,Kiev,Ukraine   AdjunctProfessor
• Aviation University, Kiev, Ukraine  Adjunct Professor
• Kyiv Internal Affairs University, Kiev, Ukraine     Adjunct Professor
• Yaroslav Mudryi National Law Academy, Kharkiv, Ukraine  Adjunct Professor
• Banking University, Kharkov, Ukraine Adjunct Professor
• Kharkiv Internal Affairs University, Kharkiv, Ukraine Adjunct Professor
• Karazin University, Kharkiv, Ukraine  Adjunct Professor
• Academy of Advocacy, Kiev, Ukraine Adjunct Professor
• Taras Shevchenko National University, Kiev, Ukraine   Adjunct Professor
• European University, Kiev, Ukraine  Adjunct Professor
• American Trial Lawyers Association
• American Academy Forensic Sciences
• Oklahoma Trial Lawyers Association
• Oklahoma Criminal Defense Lawyers—Board of Directors
• Tulsa County Criminal Defense Lawyers—President Emeritus
• Oklahoma Bar Association
• Arkansas Bar Association

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