Calvin Barry Professional Corporation

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Oshawa DUI Lawyers

Calvin Barry is an experienced DUI Lawyer in Oshawa for Impaired Driving / Over 80

Often seen as the eastern anchor of the GTA and the Golden Horseshoe, Oshawa is not without it’s share of impaired drivers. If you’re facing a DUI charge in Oshawa, you should not let one mistake lead to more mistakes that can affect your future. You must take steps to hire an experienced DUI lawyer like Calvin Barry to help you avoid the life-long consequences of an impaired driving conviction.

At Calvin Barry Law, our team of Oshawa DUI lawyers will use every detail that we can to give you a strong defence. A strong defence is your best tool to avoid the harsh consequences of a DUI charge.


Years Experience in Criminal Law


DUI / Impaired Driving Cases

Oshawa DUI Lawyers

When Experience Matters

Are You Facing Impaired Driving Charges in Oshawa?

Oshawa Lists Impaired Driving as a Criminal Offence

Plenty of people do not perceive impaired driving as a criminal offence; thinking that since it is a common offence, then it must be relatively minor compared to other offences that people get arrested for. This is far from the truth. Impaired driving, driving while high, driving under the influence, DWI, and drunk driving are classified under the most serious offences under Canadian law because although the number of incidences is high, the same incidences often result in loss of life and property. Because of this, offenders arrested for impaired driving are usually given harsh penalties.


The consequences for impaired driving go beyond simply losing one’s license temporarily and paying fines. First-time convictions may result in expensive fines and other fees, increases in insurance premiums, plus mandatory enrolment to both impaired driving education programs and post-license suspension ignition interlock programs at the offender’s expense. Succeeding convictions may come with worse penalties including jail time more so if the charge was with aggravating factors such as proof of reckless driving, loss of property or life, and high BAC readings. Know that a conviction for impaired driving in Oshawa may affect one’s business, future travel opportunities, as well as job prospects.

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So You’ve Been Charged with Driving Under the Influence (DUI)

Impaired Driving Charges in Oshawa Explained

Care & Control

This pertains to a charge of impaired driving for someone who was not actually driving the vehicle while impaired. This charge is given to a person who had care and control of a vehicle if the police officer thinks that the person will have the same control while actually driving the vehicle.

Impaired Driving

This charge is made by the police officer without a breathalyzer test or a blood alcohol reading when the officer can prove that the person driving the vehicle cannot do so safely due to being under the influence of alcohol or drugs. If the person is exhibiting erratic behaviour, lack of motor coordination, gait unsteadiness, and slurred speech then the police officer can say that the driver’s ability to drive is impaired due to the ingestion of alcohol or drug use.

Over 80

This charge applies when the driver has a blood alcohol level of more than 80 milligrams per 100 millilitres of blood as seen in a breathalyzer test (or any approved screening device). The officer must have reasonable and probable grounds for thinking that the person may be an impaired driver due to alcohol or drug use before subjecting the individual to a BAC screening in Oshawa.

Refusing a Blood Sample or Refusing a Breathalyzer

This charge pertains to a situation when the person suspected of impaired driving refuses to provide a breath sample or a blood sample to a police officer. If the sample provided is ascertained to be not enough for an investigation, then this charge may apply as well.  Cooperating with the police officer is a must to avoid being charged with refusing to provide a blood sample or refusing a breathalyzer in Oshawa.

Our Impaired Driving / DUI Defence at Calvin Barry Law:

We make use of a variety of defences and tailor them according to what will work best according to the specific details of your impaired driving charge. These defences include:


  • Challenging the reasons cited by the police officer for obtaining a breath sample
  • Challenging the technical aspects of the procedure for blood testing or using a breathalyzer
  • Challenging the subjective judgment of the police officer about what constitutes impairment
  • Challenging other details that are exclusive to the circumstances of your arrest
  • Appealing for the exclusion of evidence that was obtained by the police officer with violation of your Charter protected rights

We strongly encourage consulting with our team at Calvin Barry Law to determine the best defence strategy for your impaired driving charge. Know that it is your legal right to hire an impaired driving lawyer upon arrest or detainment related to impaired driving.

Oshawa DUI Law/Impaired Driving FAQS

Sections 320.11 to 320.4 of the Canadian Criminal Code covers the impaired driving laws in Oshawa. Charges for DUI vary based on the circumstances leading to the arrest. The charges include:

    • Care and Control
    • Driving Under the Influence
    • Failure to Provide a Breath Sample
    • Impaired Driving
    • Over 80 Mgs BAC Reading

The prosecutor’s strategies for establishing guilt for the above charges vary but the penalties for a guilty finding are the same.

A person is arrested for DUI in Canada after the police officer has established reasonable suspicion that the person may be impaired while driving based on observations and roadside testing. The person will be brought to the police station for further testing and evaluation. Note that refusing to provide fluid samples or perform a test carries the same penalties as a DUI conviction.

The minimum penalties for those convicted of a DUI charge in Oshawa or anywhere in Canada are as follows:

First Offence

    • $1,000 fine for a BAC of 80 to 119, $1,500 fine for a BAC of 120-159, and $2,000 fine for a BAC of 160 or more
    • 12-month driving prohibition
    • $2,000 mandatory fine for anyone with first refusal to provide a breath sample

Second offence

    • 24-month driving prohibition
    • 30 days of jail time

Third and Subsequent Offences

    • 36-month driving prohibition
    • 120 days of jail time

All transportation offences carry a maximum penalty of 10 years on indictment and 24 months less a day on summary conviction.

A drinking and driving charge is treated as a serious criminal offence in the Canadian Criminal Code and is met with the following consequences:

    • Criminal record
    • Expensive administrative fees
    • Impounding of vehicle
    • Increased insurance premiums
    • Mandatory attendance to education and/or treatment program
    • Possible ignition interlock requirements if and when driving privileges are restored



A DUI charge of Over 80 means that the accused registered a blood alcohol concentration of more than 80 milligrams per 100 millilitres of blood as measured by a screening device. The Criminal Code of Canada lays down specific requirements for the collection of blood and breath screening samples under Section 320.14(1). According to the Canadian Criminal Code, screening devices must be handled by qualified technicians for the reading to be admissible in court as evidence. The testing must be completed within a window of 2 hours starting from the time when the accused was initially detained by the arresting officer. Furthermore, individual samples should only be taken at intervals of 15 minutes. Because of the technical aspects and strict legal requirements of testing an accused’s BAC, an accused will need the services of a highly skilled DUI lawyer to challenge the results as well as identify  possible errors during the procedure.

Having a criminal defence lawyer with expertise in defending DUI charges is the first step in effectively beating a DUI charge. Each DUI charge that goes to trial carries key differences that require a skilled DUI lawyer to defend effectively. An experienced DUI lawyer has a repertoire of defences to form the best strategy to defend a DUI charge based on specific circumstances and charges. An Over 80 charge will not have the same defence as a Care and Control charge and will require a different strategy.

The defence strategies that are most often used for a DUI charge are the following:

  • Challenging if the accused’s Charter-protected rights were respected
  • Challenging the arresting officer’s interpretation of care and control
  • Challenging the validity of the drug screening or the validity of the BAC screening device
  • Raising legal reasons if the accused failed to provide a sample, refused a roadside screening, or rejected a breathalyzer test
  • Questioning the lawfulness of the police procedure and the original police detainment

The professional and legal fees charged by a DUI lawyer varies based on the amount of time spent to defend the accused and the complexity of the case. Although the actual court time spent for hearings of DUI charges are usually short, the DUI lawyer will spend a lot of time sorting through details to create an effective defence strategy. More so, defending some cases can take a lot of time due to assorted motions which will require additional time for case preparation, research, interviewing witnesses, and more.

A skilled DUI lawyer may be able to resolve the charges in favour of the accused by negotiating a settlement with the prosecution and/or without having to go through a trial. If the DUI lawyer can recognize a significant flaw in the Crown’s case before the trial, that information can be used by the DUI lawyer to convince the Crown to drop charges.

Generally speaking, the Crown prosecutor will reject dismissals except in instances where the recognized flaw is so obvious and cannot be ignored. In most cases, the Crown will opt to drop the DUI charges for the acceptance of a guilty plea for a lesser offence such as careless driving. An experienced DUI lawyer will know how to work with the case details to achieve the most favourable outcome for the accused while making the other party think that they are not at a disadvantage.

As mentioned in response to other DUI FAQs, Crown prosecutors will usually not dismiss charges unless with a compelling reason to do so. The possible reasons for a DUI charge to be dismissed with the help of a DUI lawyer are if the accused’s charter rights were not protected, the screening methods used were impaired, the arrest was questionable, there were mistakes during the stop and detention, and other similar circumstances wherein the right processes were not followed.

The Crown prosecutor is likely to drop the DUI charge if their case is so flawed that it is impossible for them to win during the trial. If the DUI lawyer knows for certain that the case is flawed but was not able to convince the Crown prosecutor to drop the case, then the DUI lawyer can use the flaw as a key defence strategy during the trial and possibly achieve a not guilty sentence.

A DUI conviction means having to pay higher auto insurance in most cases. More so, insurance companies may choose not to renew insurance or reject an insurance application for someone guilty of a DUI. If you can find an insurance firm willing to take you as a client, be prepared to be charged minimum of twice the standard rate.

Since impaired driving offences are classified under serious criminality in Canada, Canadian immigration law Bill C-46, Part 1 says that it is grounds for revocation of permanent resident status and could lead to deportation.

Canadian law does allow for the expungement or suspension of a DUI criminal record. This action seals the record from public view while law enforcement can still access the data. Application for a record suspension is possible 5 years after a guilty plea or a conviction and may need the services of a DUI lawyer.

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Contact Calvin Barry Today.

Calvin Barry is an experienced criminal defence lawyer and an impaired driving lawyer in Mississauga with more than 30 years of expertise navigating the law.

Calvin Barry Law serves clients in Mississauga, the Greater Toronto Area, and nearby areas in Ontario.

Calvin Barry Professional Corporation