Ontario Criminal, DUI and Impaired Driving Lawyers

Aitken Robertson, Professional Corporation

263 Charlotte Street
P.O. Box 2126

Peterborough, Ontario K9J 7Y4

Phone(705) 742-0440 or(800) 668-1657
Fax (705) 742-0889

Law Firm Overview

Aitken Robertson Professional Corporation is a criminal defence law firm that specializes in professional legal representation and looking out for the best interests of their clients when it comes to fighting impaired driving charges, DUI and other criminal matters.

Aitken Robertson, Professional Corporation - Providing services in the following areas of law:

Articles Published by Aitken Robertson, Professional Corporation

 An American with a DUI: Can I Get into Canada?

Are you an American citizen who has been charged, tried, and convicted of a DUI? Do you have interests in travelling outside of the USA to your northern neighbor: Canada? Find out whether or not you can Enter Canada if you have been convicted of a DUI.

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 Canada - Trial by Judge or Machine? What Will the Supreme Court Decide in R. v. Anic St- Onge Lamoureux?

Man Against Machine: What Will the Supreme Court Decide in R. v. Anic St- Onge Lamoureux? The Supreme Court will shortly be giving its decision in the R. v. Anic St-Onge Lamoureux case, which is a case about the constitutionality of certain provisions in the Criminal Code with respect to drunk driving charges. Why should you be interested in a drunk driving case?

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 Our Youth Criminal Justice System: A Primer - Canada

The most recent version of the Criminal law that applies to youth in Canada, the Youth Criminal Justice Act (YCJA), took effect in April 2003. Its predecessor was the Young Offenders Act (YOA) which came into force in 1984, and before that we had the Juvenile Delinquents Act (JDA) of 1908. The YCJA is longer and more complex than what came before, and is meant to address the problems found in the previous regimes......

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 Drinking and Boating Part 1: Yo Ho Ho and a Conviction for Impaired - Canada

Drink And The Devil Had Done for The Rest Yo Ho Ho And A Bottle of Rum. Boating season is upon is. For some, this is also the start of gin and tonic season. Take note: in Ontario, drinking and boating can cost you your driver's license.

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 Can I Be Convicted of Impaired Boating for Lying on My Inflatable Duck in My Pool, Drunk?

The short answer is "no" but you should not do this as your could drown! You could not be convicted of impaired operation of a vessel in these circumstances although you could in slightly different circumstances, so please read on.

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Videos Provided by Aitken Robertson, Professional Corporation

How Long Will My Criminal Case Take in Ontario?

Criminal charges vary different and vary widely based on what kind of a criminal charge they are.
For most common offences, including assault, thefts, and drinking and driving charges, usually it takes between 60 and 90 days before the case has really matured to a point where enough information is in the hands of your lawyer to provide you with a good, honest opinion about what your chances are, and what the outcomes could be.
In a domestic assault case, often there are reasons why are trying to push those ahead to get you home as fast as we can, but those even will usually take 30 to 60 days before we're able to come up with either a resolution or a requirement that we are going to be going to a trial.
The easiest thing for a lawyer to say, but unfortunately the hardest thing for a client is to be patient.
We need patience, because the quick outcome is rarely the best outcome.

How to Choose the Best Criminal Lawyer

A good criminal lawyer is going to be somebody who can represent your interests.
Your interests are going to be different than many other individual's interests.
So, not just the just unique factors and facts of your case but the unique factors and facts about you.
So what you are looking for in a criminal lawyer is someone you trust, who can represent your interests and who can obtain the best results.
It's not always somebody who is an absolute fighter - it's not always somebody who is an absolute friend.
It's somebody who is able to balance between those and give you a realistic objective and realistic outcomes that are positive and meet your requirements.

First Court Appearances

At a first appearance date, a client should expect to have a lawyer attend, to obtain disclosure and adjourn the matter over for meetings with the Crown.

Itís not like in the movies. Itís not like in the United States, where a plea is entered, where information is brought forward, and where there is a preliminary hearing.

In Canada, a first appearance date is very often, and almost always, just a placeholder date so that information can be obtained by your lawyer, from the Crown, and then a meeting is set up with the Crown to discuss the case. Very little actually happens, contrary to common belief and to the disappointment to a lot of clients, if often takes longer than expected to deal with these matters.

Often, it takes 30 to 60 days to get the ball rolling on any case.

DUI Defence - False Positive

[INTRO Music]

Richard Aitken: Hi, I'm Richard Aitken, the founding lawyer of Aitken Robertson DUI Lawyers. With me today is Dr. Krishnan, a forensic alcohol toxicologist. It's been a long time Krish, how long do you think we've been doing this together for?

Dr. Krishnan : I think it's been about 20 years, I think. I met you a long time ago.

Richard Aitken : I think we both had hair then.



Richard Aitken : Now, a few minutes ago, Nicole did this testing where she had a bit of alcohol in her mouth, spit it out and was tested and we know that it showed, initially, about 600 mg - but within about 7 minutes it was completely down to zero. In other words it was not actually in her bloodstream (otherwise she would be dead.) But sometime we have a fact situation where perhaps a person leaves a bar, chugs the last beer, is stopped by the police about five minutes later and then the police officer does not ask when the person last had a drink - does the approved screening device sample then - and it gives a false positive. Could you explain what is involved with that doctor?

Dr. Krishnan : As you drink alcohol, some of the alcohol will be in the mouth. If you take a reading immediately after a drink, the alcohol in the mouth is in a much higher concentration in some cases and you then blow the entire amount of alcohol into the instrument at a very high concentration.


Dr Krishnan : Unless you give fifteen minutes for the mouth alcohol to dissipate, the alcohol concentration you get from the instrument cannot differentiate from where it comes from - it can be from the mouth or it can be from the bloodstream. So if you take a reading within fifteen minutes of when a person finishes consuming a drink, you might have the blood-alcohol reading contaminated by the mouth alcohol reading


DUI Defence Part I

Dr. Krishnan:

We are going to do an experiment as to what happens if a person has alcohol in the mouth - mouth alcohol - and not in the bloodstream. Sometimes it happens, by regurgitation or recent consumption of alcohol, there is a lot of alcohol in the mouth and it has not reached the blood. This is what we want to differentiate from.

She has swished some alcohol in her mouth and spat it out. There is nothing in her blood,
everything is in her mouth now. She is going to blow into the instrument let's see what happens.

It [the instrument] is now going to do an air blank - setting it to ZERO level of the instrument.

The air blank is zero as you can see on the display, then it now says BLOW. So Nicole is going to blow.

Take a deep breath and hold it as long as you can.

Okay, blow.


[Incremental Increases Reported]






You saw a reading of 600 milligrams. Obviously it is not in her blood stream because if she had 600 mg of alcohol in 100 millilitres of blood she would be down on the floor, probably in cardiac arrest. The peculiarity of the mouth alcohol is that as the alcohol evapourates into the environment, it will rapidly fall, as opposed to blood alcohol which may decrease at a rate of 15mg per hour.

DUI Defence Part II

Nicole: After finishing the first test, I wasn't in the least bit impaired. It has been about 5 minutes and we are going to do the second test.

Dr. Krishnan: Okay, take a deep breath and blow as long as you can.

[Ringing Sound from Machine Processing Breath Sample]

Dr. Krishnan: Zero. 8 Minutes and all the alcohol is gone - from 600mg - [the machine] actually said "range exceeded" which means about 600 and now she has nothing. All of the alcohol is gone. If it was blood alcohol, at the rate of 15mgs it would have taken 40 hours to go away but it now disappeared in 8 minutes. This [demonstrates] mouth-alcohol and not blood-alcohol.

*This experiment proves that recently consumed alcohol can provide a DUI defence, especially at low alcohol readings.

How does roadside test for impaired driving work when stopped by a police officer?

Blood Alcohol Content Test

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