Eastern Iowa Criminal Defense Attorneys
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Defenses to OWI/DUI in Iowa City

Serving Cedar Rapids, Davenport & all of Eastern Iowa

Many people fail to defend themselves against OWI/DUI charges because they erroneously believe the charges against them are open-and-shut. In reality, there are many defenses to OWI/DUI because there are many opportunities for police officers to make mistakes and for equipment to malfunction. The outcome of your case will have a lasting effect on your life. It is in your own best interest to hold the authorities accountable for following proper procedures at every step. Call Keegan, Tindal & Jaeger today for a free consultation about protecting yourself.

If you have questions about the validity of your traffic stop or the results of your breath test, call (319) 499-5524 to speak to an Iowa City drunk driving defense lawyer.

Decades of Proven Legal Experience

At Keegan, Tindal & Jaeger, our attorneys have successfully defended many drivers against OWI/DUI charges stemming from procedural mistakes or faulty BAC testing equipment.

Our lawyers can examine the circumstances of your case to determine whether:

  • The police had probable cause to stop your vehicle
  • The police read you your rights
  • The field sobriety or breath test was properly administered
  • The BAC testing equipment was operated and maintained according to protocol
  • Communication requests were denied

Attorney J. Dean Keegan has dedicated himself to understanding the science behind BAC testing and other scientific tools at the prosecutor's disposal.

DataMaster Plagued By Inaccuracies

DataMaster is the only breath test machine approved for use in Iowa, but several issues can render your BAC test results inadmissible and cause the state to drop the charges against you. The operator of the machine must be certified, the machine itself must be certified and calibrated, the test run results need to be recorded properly and the mouthpiece must be changed between tests. Even when these conditions are met, DataMaster is still prone to error.

The machine is essentially a calculator that makes assumptions about you. It cannot differentiate between subtle differences in biomechanics. The state has built assumptions into the machine that benefit the state, not the defendant.

Contact Our Drunk Driving Defense Team

Call now to arrange a free initial consultation in Cedar Rapids or Iowa City. We accept payments by cash, check and credit cards.

Dial (319) 499-5524 now or contact us online and get started on defending your rights.

SUCCESSFUL results for our clients

Protecting Your Freedom & Rights
  • First Degree Murder and Child Endangerment Causing Death Acquitted of First Degree Murder at Trial

    Henry County FECR005634. Attorney Tindal’s client was charged with First Degree Murder and Child Endangerment Causing Death. Following a two week trial, the Defendant was acquitted of all charges.

  • Vehicular Homicide Charges Reduced, No Incarceration Imposed

    Muscatine County FECR056673. Vehicular Homicide was reduced to Involuntary Manslaughter. Total sentence was suspended.

  • Felony Drug Charges Charges Dismissed

    Muscatine County FECR050038. Attorney Dean Keegan's client was charged with two counts of controlled substance violation, as well as two counts of failure to affix tax stamp. After a year of court appearances and negotiating with the prosecutor, all charges were dismissed with costs assessed to the State.

  • Carrying Weapons, Public Intoxication, & Disorderly Conduct Carrying Weapons & Public Intoxication Charges D

    Linn County AGCR108044. Attorney Dean Keegan's client was charged with Carrying Weapons, Public Intoxication, and Disorderly Conduct. After plea negotiations with the State, Mr. Keegan was successful in dismissing the Carrying Weapons and Public Intoxication charges.

  • Possession with Intent to Distribute Charges Dismissed

    Iowa County FECR010358. Attorney Tindal was able to show the Court that his client was detained in violation of his Constitutional rights and that the K9 utilized in the search was unreliable. Following hearing all charges were dismissed.

  • Embezzlement No Criminal Charges Filed

    Cedar Rapids, Linn County, Iowa. An employee of a Cedar Rapids business accused of embezzling six million dollars was not charged criminally after the County Attorney agreed to abide by an agreement negotiated by Attorneys J. Dean Keegan and Jerald Kinnamon in which the accused would pay two million dollars to the company.

  • Second Degree Sexual Abuse and Other Charges Acquittal at Trial

    Johnson County FECR089277. The Defendant was charged with Second Degree Sexual Abuse and other charges. Following a one-week trial by Mr. Tindal, the Defendant was acquitted of all charges.

  • Trafficking Stolen Weapons and Misdemeanor Theft Charge Dismissed

    Scott County FECR384046. The Defendant was charged with Trafficking Stolen Weapons and Misdemeanor Theft. The Court dismissed the felony following a Motion litigated by Mr. Tindal. The Defendant subsequently pled to the remaining misdemeanor.

  • Possession with Intent to Deliver Marijuana and Methamphetamine Charges Dismissed

    Washington Count FECR5351. Attorney Tindal and Attorney Clemens Erdahl successfully argued that evidence of drug manufacture was obtained in violation of the Constitution. All charges were dismissed.

  • Operating While Intoxicated 3rd Offense Charge Dismissed

    Linn County OWCR104143. Attorney Dean Keegan's client was charged with a felony 3rd offense OWI. Mr. Keegan argued the officer did not have reasonable grounds to pull over his client. The charges were dropped from a felony to a ticket fine of $15.00 for being in a park past closing time.


Opinions That Matter Most 

Reviews from Our Clients
  • I am glad he was there to get my head out of the guillotine when I needed him and keep my record clean.

    - Ryan
  • My family and friends appreciate all you have done. Thank you.

    - Michael
  • Andrea Jaeger is the best defense attorney in the world.

    - Orlando

Aggressive, Skillful & Experienced Defense

Learn Why We Are The Leading Criminal Defense Firm In Eastern Iowa
J Dean Keegan, Attorney at Law Qualifications HD

When you need an attorney, calling Dean Keegan, Attorney at Law, can be your first step toward taking back control of your situation and your life. Dean Keegan is the Founding Chair of the Iowa Trial Lawyers Association, Criminal Law Section. He has served on the Executive Board of the Iowa Association for Justice and is a member of the Nation College of DUI Defense and National Association of Criminal Defense Attorneys.