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We can effectively deal even with the most difficult situation. Let our expertise help you win your case!

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Our team speaks Punjabi, Arabic, Farsi, Russian, Cantonese, Mandarin and other languages
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I would like to express my gratitude for your services. The way you presented your arguments and defended against cop’s attacks in court was really impressive. I hope I will never have to be in the same situation again but if I will do I know who to call!
Kalinja, Etobicoke

Our DUI Lawyers

Jeff Mass

Jeff Mass

  • 10 years of successful drunk driving charges defence experience
  • Hundreds of tough impaired driving cases won
  • Knowledgeable lawyer who is not afraid to take on the police in court
Robbie Tsang

Robbie Tsang

  • Impaired driving defence expertise since 2005
  • Accepts difficult cases that other lawyers refuse to take
  • Known for custom approach and creative solutions for each case
Heather Spence

Heather Spence

  • Graduated Osgoode Hall Law School and received a Juris Doctor in Law
  • Practices exclusively in the area of criminal law
  • Is ready and able to answer your criminal law question at any time
Brian Brody

Brian Brody

  • Passionate lawyer who is committed to providing the best possible defence for his clients
  • In 2009 completed the Criminal Concentration Program at the University of Western Law School
  • In 2010 became a member of the Law Society of Upper Canada
Alexei Zaitsev

Alexei Zaitsev

  • Law degree from University of Windsor, with a heavy focus on criminal law
  • Fluent in English, Russian and Hebrew
  • Practices exclusively in the area of criminal and quasi-criminal defense

Toronto DUI Lawyers

Many people are surprised to discover that impaired driving charges (typically referred to as DUI (driving under the influence) or DWI (driving while impaired or driving while intoxicated) are considered “criminal” offences under the law. In fact, many people in Ontario only discover this fact when they have been arrested for an impaired driving offence and find themselves faced with the possibility of a permanent criminal record.

If you find yourself in this situation due to an error of judgement or other reason, you should quickly seek the services of a criminal lawyer who can help you navigate through the complicated legal issues of your case in search of the most advantageous outcome possible. Depending upon the details concerning your case, this could be a dismissal of charges, not-guilty finding, reduced charges, or mitigation of the severity of the charges and/or resultant penalties. The Toronto-area’s Mass Tsang law firm has a dedicated team of highly skilled and experienced criminal lawyers well versed in helping their clients mount a successful DUI defence.

If you try to defend yourself against impaired driving charges in Toronto or anywhere in Ontario without the skilled legal counsel of a DUI lawyer, you risk severe consequences beyond the threat of a permanent criminal record. This is especially true should this be a second, third, or subsequent offence, each of which comes with increasingly harsh penalties—including jail time—if convicted.

Consider that along with the possible criminal record, a guilty finding on a first offence may subject you to:

  • License suspension of up to a year
  • Mandatory attendance in an educational or treatment program
  • Post-license reinstatement requirement to use an ignition interlock device for up to a year
  • Mandatory medical evaluation for license re-instatement
  • Jail time if there are mitigating circumstances, such as causing an accident and/or injuries
  • Vehicle impoundment
  • Extensive fines and administrative fees
  • Large increases in insurance premiums

Subsequent DUI convictions result in significantly harsher penalties, including long-term or lifetime license suspensions, bigger fines, and the greater likelihood of receiving jail time.

A criminal lawyer experienced with all elements of Ontario’s impaired driving laws can strategize a defence designed to produce the most favorable outcome based upon the specific elements relating to your case. Every alleged DUI case raised in the Ontario court system is unique, with their distinct differences presenting a vast range of options relating to the successful mounting of a defence.

For example, if your case resulted from a breathalyzer reading registering near the legal .08 threshold, it may significantly expand the option of questioning the validity of the reading. Or, if the police allege impaired driving based on drugs, there could easily be reason to raise the validity of Drug Recognition Evaluation screening or perhaps the results of fluid testing. And then there’s “care and control”—charges laid even when you may not have even been driving the vehicle in question. This nebulous area of DUI law tries to establish DUI guilt even if not driving, based on the possibility that you might have been able to drive while impaired, and is typically worth a detailed examination of relevant facts.

Your legal rights are also a key component of strategizing a defence. Was the stop and evaluation of your driving state legally justified, and did police follow all proper procedures during their subsequent investigation of your alleged impairment and your arrest? Or, if you were charged with “failure to provide” or refuse a roadside screening or breathalyzer test, perhaps you had legal reasons for doing so.

And, of course, protection of your charter rights is a key element in evaluating your defence strategy—were you advised of these rights and given the correct opportunity to contact your DUI lawyer?

Whatever DUI-related charges you may be facing in the Toronto area, your first step should be to reach out to the skilled criminal lawyers at Mass Tsang. After you share all relevant details concerning your arrest and upcoming court case, we conduct a detailed examination of all pertinent facts and work with you to determine the best approach for achieving the desired outcome. This approach could challenge the legality and justification of the arrest or police failure to protect your legal rights during the arrest. It could challenge the basis used for determining impairment, whether flawed breathalyzer reading, invalid fluid sample, or faulty drug recognition evaluation. Or it could be a matter of pushing a full-court press to prove your innocence of the charges. Whatever the case, you are our client and we are dedicated to finding a reasonable strategy to help you best surmount the challenges of being charged with impaired driving.

Please note that our success in fighting DUI charges is dependent upon you being forthcoming with all details relating to the arrest. Every possible detail, no matter how apparently insignificant, could prove instrumental in your successful defence. If you are concerned about embarrassing details or confidential issues about your arrest becoming public, know that your interactions with Mass Tsang DUI attorneys are held in the strictest confidence. And should any such details prove to be a crucial component of your defence, our lawyers always discuss disclosure options with you prior to introducing such to the court, or otherwise making it part of the public record.

Bottom line, our priority is you! Mass Tsang is committed to working with you in order to:

  • Seek out the best possible legal outcome for your DUI charge(s)—dismissal, not guilty, reduced charges, mitigated penalties, or otherwise.
  • Make certain that all of your legal rights are fully protected throughout each step of your ordeal.
  • Ensure that everyone from the police officer who arrested you to anyone in the court treats you with respect and dignity.

If you’ve been arrested for impaired driving in the greater Toronto area, consult with the experienced DUI lawyers at Mass Tsang today. With one of the highest success rates in battling DUI charges in the Toronto court system, our partnership with you could prove invaluable.


What does DUI mean?

DUI is the acronym for “driving under the influence” of alcohol and/or drugs and is used to refer to all elements of Ontario’s impaired driving laws.

What happens when you get a DUI for the first time?

When the police have a reasonable suspicion that you have been driving while impaired based on any number of roadside tests and observations, they will place you under arrest and bring you to the police station for further testing. While you do have the right to have a lawyer present for such testing, refusal to perform a test or provide fluid samples carries the same penalties as a DUI.

How bad is a DUI?

Because it is a criminal charge, a guilty finding can lead to a permanent criminal record, among the many other consequences.

What are the consequences of a DUI?

License suspension, fines, administrative fees, increased insurance premiums, possible jail time, criminal record, and other life-disrupting factors.

Can you drive with a DUI?

Under certain conditions you may be able to receive the reinstatement of a suspended license. A DUI attorney may be able to help you qualify.

Can you beat a DUI in court?

Absolutely! The highly skilled criminal lawyers at Mass Tsang have successfully defended 1,000s of Toronto-area DUI clients.