Practice Areas

Aggressive Knoxville DUI Defense Lawyer

We challenge every aspect of the State’s case, including the blood test, field tests and dashboard camera video. We don’t accept the cop’s version, we uncover the defenses that can win your case.

Personalized Criminal Defense

An aggressive defense that investigates the facts, interviews witnesses, and that works entirely in your best interest can often result in dismissals, not guilty verdicts, or reduced charges.


Knoxville Federal Drug Trafficking Defense Attorney

A Knoxville Criminal Defense Lawyer Protecting the Rights of People Accused of Drug Trafficking According to the Federal Bureau of …

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Client Testimonials

“John is amazing not only did he get the outcome he promised he did it in a shorter time than he originally said. He went above and beyond in returning my emails and phone calls. John and staff truly cared about me as a person. I highly recommend John Barnes.”

Coach M.

“I would highly recommend Mr. Barnes to everyone & I would definitely contact Mr. Barnes if I or anyone in my family should ever need an attorney again:) They were all very professional, friendly & treated our case with importance:) Mr.Barnes got my son’s DUI dropped to reckless driving so I would definitely recommend him to everyone!!!!!!!”

Alicia U.

“Mr. Barnes and his staff are amazing. I can’t imagine anyone doing a better job with my case. At no point in the long process was I disappointed in any way with how things were handled.”

Scott C.