Impaired Driving & DUI
Over 80, impaired by alcohol or drugs, refusing to provide samples. DUI charges carry serious penalties — early legal advice is critical.
Learn More →Calgary Criminal Defence Lawyer
Your Rights.
Your Defence.
When the stakes are highest, you need a lawyer who is 100% focused on your case. Hersey Law is a boutique criminal defence firm serving Calgary and all of Alberta — with the undivided attention your matter demands.
Bar
Law Society of Alberta
State Bar of California
State Bar of California
Practice
Exclusively Criminal
About David Hersey
A Focused Defence When It Matters Most
A criminal charge can upend your life within hours. What you do next — and who you call — determines everything that follows. Hersey Law exists for exactly that moment.
David Hersey is a Calgary-based criminal defence lawyer and founder of Hersey Law. He practices exclusively criminal defence, representing clients across Alberta at both the trial and appellate levels.
David's practice is built on a single principle: when the state brings its full weight against you, you deserve a lawyer who will fight back with the same intensity from the very first appearance.
Learn About David
Practice Areas
Defending the Full Spectrum of Criminal Charges
Assault & Violent Offences
Simple assault to aggravated assault, domestic violence, weapons offences. Every allegation demands a thorough, case-specific defence.
Learn More →Drug Offences
Possession, trafficking, production, and importation. Charter rights protect against unlawful search and seizure — a critical tool in drug defence.
Learn More →Sexual Offences
Sexual assault and related charges. These allegations carry life-altering consequences — the defence must be strategic, meticulous, and deeply experienced.
Learn More →Fraud & Financial Offences
Fraud, theft, breach of trust, and white-collar crime. Complex financial allegations require a lawyer who can command the evidence and the courtroom.
Learn More →Firearms Offences
Unauthorized possession, unsafe storage, trafficking, and prohibited weapons. Firearms charges often carry mandatory minimums and require urgent attention.
Learn More →Bail Hearings
Your first opportunity to be released pending trial. A strong bail application makes the difference between going home and waiting in custody. Call immediately.
Learn More →Appeals
Conviction or sentence appeals to the Court of King's Bench or Alberta Court of Appeal. A fresh set of experienced eyes can identify errors that change outcomes.
Learn More →
Why Hersey Law
What Sets a Boutique Criminal Defence Practice Apart
01
Your File. Your Lawyer. Every Time.
At Hersey Law, David personally handles every aspect of your defence — from bail hearings to final submissions. When you call, you reach your lawyer.
02
Criminal Law Is All We Do
Every hour of experience, every continuing education course, and every ounce of court time is invested in criminal defence.
03
Available When You Actually Need a Lawyer
Criminal charges do not occur on a 9-to-5 schedule. Arrests happen 24/7. Hersey Law is reachable when it counts.
04
Strategic, Charter-Driven Defence
The Canadian Charter of Rights and Freedoms is the most powerful tool in a defence lawyer's arsenal. David scrutinizes every arrest, search, and detention for Charter violations that can result in exclusion of evidence or a stay of proceedings.
Charged with a Criminal Offence?
Don't Wait.
The decisions made in the first 24–48 hours after a charge or arrest can define the entire course of your defence. Contact Hersey Law immediately for a confidential consultation.