Kay Mahoney Koustov Law

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Impaired Driving Lawyer Calgary

DUI/Impaired Driving • Dangerous Driving • Driving Over 80

When you can’t afford to lose your license or get a criminal record, trust a former Crown Prosecutor to help you win your DUI case!

  • DUI, Impaired driving
  • Careless driving
  • Driving over 80
  • Dangerous driving 

Our approach to an impaired driving defence is built on a thorough review of the facts, exhaustive examination of all issues associated with your traffic stop, and a determined approach to defending your case. We are a firm built on the foundation of significant trial success. Since our founding we have been highly effective for our clients.

Call our Calgary office at 403-617-0035 or contact us online to schedule a consultation.

Impaired Driving & Driving Over 80 


Driving while blood alcohol over 80 and impaired driving charges can have significant and unexpected consequences beyond criminal fines and potential jail time. A conviction can also lead to:

  • A permanent criminal record
  • Employment issues
  • Driving prohibition for at least one year
  • Required treatment or assessment programs
  • Increased insurance premiums
  • An immigration status change

Our clients come from all walks of life. Whatever your situation and needs, we fully review all aspects of your case to help you protect your rights and achieve a workable solution.


Defending Dangerous Driving Charges

Many Albertans consider driving offenses as trivial things, which may be easily solved with a quick fine.  However, when these charges involve substantial damage to property, serious injury or even death, the consequences can be serious.

Dangerous driving is broadly defined in the Criminal Code, leaving law enforcement officials substantial latitude to apply the charge as they see fit. Particularly, where you are charged in conjunction with a serious injury or death, you need a knowledgeable legal advocate to help protect your rights.

Our firm handles cases involving:

  • Impaired driving charges
  • Excessive speeding tickets
  • Abrupt lane change fine
  • Reckless/Aggressive driving
  • Auto Accidents resulting in serious injury
  • Criminal negligence causing death with the operation of a motor vehicle

Penalties can include a one-year license suspension even if no one is harmed as a result. Where a person suffers serious bodily harm, a conviction can result in jail time. up to 10 years, a penalty that will increase if a death results.

Get a Free Impaired Driving Consultation.

Worth Every Dollar

Darren was amazing in court. He was fully prepared and worked hard to prove my case. I was charged with a DUI and other charges. I walked away with nothing. Could not be happier and more thankful for his hard work and knowledge.

C. C.

Let Our Experience Be Your Guide