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Criminal Defense Attorneys

Facing Criminal Charges in Oklahoma?

Are you facing criminal charges in the state of Oklahoma? Whether its municipal, state, or federal charges, the experts at Clean Slate Lawyers have the experience and expertise to defend your case. Don't risk a costly conviction or jail time, call the criminal law experts at Clean Slate Lawyers.

We help clients who have been accused of serious felonies, including white-collar crimes and murder, as well as those charged with minor crimes, such as a DUI or drug charges. We understand that facing a criminal charge is one of the most stressful experiences you can have, and we're here to help.

Our work in criminal law in Oklahoma includes: 

  • Expungements
  • Drug Crimes
  • White Collar Crimes
  • Violent Crimes
  • Traffic and DUI
  • Appeals
  • Sex Crimes
  • Parole Violations

Why Clean Slate Lawyers?

  • Successful, highly-rated, honest lawyers in the state of Oklahoma
  • More than 35 years of combined experience in criminal law
  • Exceptionally high Avvo Ratings with 0 instances of misconduct
  • Our attorneys are recipients of numerous prestigious criminal defense awards

Award-Winning Criminal Defense Attorneys

• David McKenzie was recognized as the Defender of the Year by Oklahoma Bar Association in 2010

• David McKenzie was awarded the Maurice Merrill Golden Quill Award by Oklahoma Bar Association in 2014

• David McKenzie was a recipient of the Earl Sneed Award for Outstanding Contribution to CLE by Oklahoma Bar Association in 2014


• Riley Mulinix was named a Rising Star in Criminal Defense in Oklahoma by Super Lawyers (2015 & 2016)

• David McKenzie was awarded the Barry Albert Award for Excellence in Advocacy by Oklahoma Criminal Defense Lawyers Association in 2011

• David McKenzie was a recipient of the Clarence Darrow Award by Oklahoma Criminal Defense Lawyers Association in 1997


Call David McKenzie Now! 24 hours a day, 7 days a week.


Get the legal representation you deserve.



Don't take our word for it. Read our client's review to learn more about us:

David saved my son's life!

David came highly recommended by a dear friend of mine and personal colleague of Mr. McKenzie. Hiring David was one of the best decisions I've ever made! David is confident, professional and smart! My only son, was charged with three counts of armed robbery. (Thank god he didnt physically hurt anybody.) Each count punishable with up to life in prison! As a result of Davids legal intervention my son was essentially given a new lease on life. My son will have the opportunity to become a decent and productive member of society. Thank you David!

     Posted by Dwight on Avvo on May 15, 2016 [Read More]

Trusted, capable and compassionate legal counsel

Nobody every plans to get caught holding. Furthermore, I don't need to tell you that it was a huge embarrassment to myself and my family when I did. But I tell you what - That patrol officer threw me in Muskogee County for simple possession of 1/4 oz of Marijuana without hesitation or consideration of the awkward conversations I might be having with potential Clients, Boards, Vendors, and the Government during any potentially forthcoming background investigations. So I decided to do something about it and looked online for a local expungement attorney - and boy am I glad I did!

I was very impressed with the level of professionalism of Riley during the handling of my expungement. He was alway easy to get in touch with and patiently answered any questions that I had about the process. He really made me feel as if he cared about helping me out and getting my records cleaned up.

If you too have made a mistake in the past keep it there. Riley can get it done for you, truly like it never even happened. To anyone looking for an expungement attorney I could not recommend Riley any higher.

     Review Posted by Wes on Feburary 12, 2016 [Read More]

The respected lawyer you want when you need results

David McKenzie represented me in a difficult case in which I needed solid representation and a lot of time put into it right off the bat. It was an usual involvement I had in a criminal matter, and Mr. McKenzie worked efficiently to save me a huge headache and get me out of a tough situation where I was wrongfully accused. Mr. McKenzie not only provided excellent legal guidance and strategy in succeeding in my case, but he also made me feel at ease with his experience and expertise, which allowed me to focus on other priorities in my life, rather than worry about my case. Mr. McKenzie is so well respected in Oklahoma City that my case was disposed of quickly and completely to my satisfaction. He's the kind of lawyer you want when you need results. His connections with other attorneys and judges, and his relationships with prosecutors make him a go-to attorney in Oklahoma. I would recommend him to every friend and family member I know looking for solid representation.

     Anonymous review posted to Avvo on August 30, 2016 [Read More]






Our highly-rated attorneys practice throughout the state & can file your petition in any of Oklahoma's 77 counties, which include: Adair County, Alfalfa County, Atoka County, Beaver County, Beckham County, Blaine County, Bryan County, Caddo County, Canadian County, Carter County, Cherokee County, Choctaw County, Cimarron County, Cleveland County, Coal County, Comanche County, Cotton County, Craig County, Creek County, Custer County, Delaware County, Dewey County, Ellis County, Garfield County, Garvin County, Grady County, Grant County, Greer County, Harmon County, Harper County, Haskell County, Hughes County, Jackson County, Jefferson County, Johnston County, Kay County, Kingfisher County, Kiowa County, Latimer County, LeFlore County, Lincoln County, Logan County, Love County, Major County, Marshall County, May County, McCain County, McCurtain County, McIntosh County, Murray County, Muskogee, County, Noble County, Nowata County, Okfuskee County, Oklahoma County, Okmulgee County, Osage County, Ottawa County, Pawnee County, Payne County, Pittsburg County, Pontotoc County, Pottawatomie County, Pushmataha County, Roger Mills County, Rogers County, Seminole County, Sequoyah County, Stephens County, Texas County, Tillman County, Tulsa County, Wagoner County, Washington County, Washita County, Woods County, & Woodward County.