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As a former Crown prosecutor, I bring a wealth of knowledge and experience to the Aitken Robertson team. Taking on files in Peterborough, the Kawarthas, and Oshawa, I serve as counsel to those charged with criminal offences.

Phil Stiles - criminal defence lawyer

“I see myself as serving two functions in the courtroom: defending my client and defending the justice system. Thankfully, these two objectives go hand-in-hand. In advancing my client’s case, I am also defining the boundaries of the law and the limits of state power.” – Philip Stiles

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Called to the Bar in Ontario in 2013

Nice to meet you!

My unique combination of education and work experience is an asset when defending clients against criminal allegations.

After completing a two-year contract with Alberta Justice and Solicitor General, I returned to Ontario to finish a Master’s degree in Constitutional Law.  I then joined the firm of Aitken Robertson as a criminal defence lawyer.

As a Crown attorney, I became accustomed to rigorous criminal litigation, often acting as lead counsel in cases involving expert witnesses and complex evidentiary issues, and this experience continued when I turned to criminal defence. I have both prosecuted and defended a wide range of offences in various levels of court—from traffic court to jury trials. My courtroom experience includes cases involving arson, mischief, assault, sexual assault, child pornography, theft, extortion, dangerous driving causing death, and obstruction of justice.

My work experience has left me with a thorough understanding of Crown protocol and the factors that must be considered, regardless of how serious the allegation. It has also helped me achieve terrific results for my clients at a very early stage. Furthermore, being attuned to the Crown’s proof requirements in a wide variety of criminal prosecutions has proven to be an asset in criminal defence work. Knowing what makes for a successful prosecution is often the foundation for the most unshakable defences.

In addition to significant hands-on work experience, my academic background has also given me a competitive edge in the courtroom. Having recently completed an LLM in Constitutional Law, I am attuned to my clients’ Charter rights at every stage of the criminal process. This is particularly important in the context of impaired driving, where even the slightest breach of your rights can lead to an acquittal at trial.

What I have learned as defence counsel is that being a good lawyer is far more than legal knowledge and courtroom skills. Helping clients understand how the law and criminal process applies to their particular situation is a key aspect of my job. Most clients I meet with have no criminal record and have never been charged before. My first goal is to make sure they have a thorough understanding of how the law applies to their situation so that they can make clear and informed choices. For my clients, I strive to make sure that there is no concern left unaddressed or question unanswered after our first meeting. From there, I work diligently and put in a tremendous amount of time and focus into your case to ensure a favourable early resolution, or a concrete defence for trial.

While my practice is now primarily in the Durham region, I often assist in the firm’s Lindsay and Peterborough offices. You can contact me by filling in a consultation form on our website, or by calling our office toll-free at 1-800-668-1657.

Philip Stiles is a lawyer and is licensed by the Law Society of Ontario.


  • Call to the Bar, Alberta, 2015
  • Call to the Bar, Ontario, 2013
  • LL.M., Osgoode Hall, 2018
  • LL.B., University of Windsor, 2011
  • B.A., Political Science, Trent University, 2007


  • National College of DUI Defense (NCDD)
  • Peterborough Law Association
  • Lindsay Law Association
  • Durham Law Association
  • Ontario Bar Association


CALL ME TODAY AT 1-800-668-1657

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