Greg Dunn
Greg Dunn is a criminal defence lawyer whose practice is centred on serious and complex criminal matters. Over more than two decades in criminal defence, he has acted for clients facing allegations with significant legal, personal, and reputational consequences, including cases requiring close evidentiary review, strategic trial preparation, and appellate advocacy.
His work has included appearances at every level of court in Alberta, as well as matters in other jurisdictions and before the Supreme Court of Canada. Across that work, he has developed a reputation for disciplined preparation, careful legal analysis, and advocacy suited to cases where the stakes are high and the facts or legal issues are contested.
Criminal Defence Practice
Greg’s route into criminal defence began in civil litigation. After graduating from the University of Alberta, he began his legal career in insolvency litigation with Fraser Milner Casgrain, now Dentons. He later moved into criminal law in Calgary, where he built his practice within one of the city’s long-established criminal defence firms.
That background continues to inform his approach. Criminal files often turn on detail: the strength of the record, the coherence of the prosecution theory, the reliability of witnesses, and the legal issues that emerge from the investigation itself. Greg’s practice reflects a sustained focus on those questions from the outset of a file through trial and, where necessary, appeal.
Courtroom Experience and Serious Matters
Greg acts in serious indictable matters, complex prosecutions, and cases requiring strategic management over time. His work has included high-profile matters, cases attracting significant public attention, and prosecutions involving substantial personal or professional consequences for the individuals charged.
He is also regularly consulted in matters that call for experienced judgment at an early stage, whether in relation to disclosure review, Charter issues, contested applications, trial planning, or the assessment of appellate options. The emphasis throughout his practice is on thoughtful preparation, clear advice, and advocacy grounded in the record and the law.
Professional and Public-Facing Work
In addition to his defence practice, Greg has been consulted on criminal justice issues in Alberta and has contributed to legal education and public discussion on matters touching criminal law, civil liberties, and firearms regulation. His professional work has included instruction and guest lecturing in legal and investigative settings.
That broader involvement does not change the centre of his practice. His principal work remains the defence of individuals facing serious criminal allegations and the careful handling of files where discretion, judgment, and trial readiness matter.
High-Profile Cases
Greg Dunn has acted as lead counsel on numerous high-profile matters, including:
- Stay of proceedings for Husband who survived assassination attempt that killed wife
- Acquittal of Fort St. John B.C. man charged in fatal hit and run
- Conspiring to murder RCMP during Coutts protest
- Alleged plot to kill Coutts RCMP officers
- Massage Therapist sex offender Sentencing
- Memegate Acquittal
- Calgary City Councillor Joe Magliocca Fraud Case
- Jesse James Pearson 1st degree Murder Acquittal
- Bolsa New Years Day Massacre
- Rat Torture Case
- Racist Cab Patron Case
- Loan Shark Murder plot Case
- Calgary Caregiver Feces Case
- Arkansas Death Penalty Extradition Case
- Mission Bank of Montreal Robbery Case
Contact directly 403-233-0443
How Greg Approaches Your Defence
Greg’s defence work is shaped by strategic preparation, courtroom control, and a sustained focus on serious and complex criminal prosecutions. His approach is built around the record, the legal issues, and the decisions that shape a case long before trial.
Strategic Case Building
Greg brings a methodical approach to disclosure, witness issues, evidentiary challenges, and trial planning. His background in litigation supports careful case development from the earliest stage of a file.
High-Stakes Criminal Advocacy
His experience includes major indictable matters, appellate work, and high-profile files where the legal, personal, and reputational consequences are significant.
Senior Defence Judgment
Greg brings judgment, structure, and disciplined advocacy to difficult criminal matters. He helps clients understand the risks, the evidence, and the legal choices that shape a defence.
A Measured Defence Approach
Greg’s practice is shaped by the view that serious criminal allegations should be met with serious preparation. That begins with a disciplined review of the evidence, an early assessment of legal issues, and a defence strategy built around the realities of the file rather than formulaic responses.
At Ross Lutz Dunn & Deshaye, his work reflects the firm’s broader approach to criminal defence: independent judgment, careful advocacy, and a sustained focus on serious criminal litigation in Calgary and throughout Alberta.
