Crown Disclosure in Ontario: Your Right to See the Evidence Against You

If you have been charged with a criminal offence in Ontario, the Crown is legally obligated to show you the evidence it intends to use against you — and much of the evidence it does not intend to use. This process is called Crown disclosure, and it is one of the most important stages in any criminal case. Without full and timely disclosure, you cannot meaningfully defend yourself. The right to disclosure is not a courtesy — it is a constitutional right, rooted in the Canadian Charter of Rights and Freedoms and affirmed by the Supreme Court of Canada.

Whether you are facing charges in Barrie, across Simcoe County, or anywhere in Ontario, understanding disclosure is essential. This guide covers what disclosure is, what it should contain, when you should receive it, and how your lawyer uses it to build your defence.

The Stinchcombe Decision: Where the Right to Disclosure Comes From

The modern law of disclosure in Canada traces back to the 1991 Supreme Court of Canada decision in R. v. Stinchcombe. Before that case, the Crown had broad discretion over what it shared with the defence. The system was adversarial in the worst sense — the prosecution could hold back evidence and ambush the defence at trial.

Stinchcombe changed everything. The Supreme Court held that the Crown has a duty to disclose all relevant information in its possession to the accused, whether or not the Crown intends to rely on it at trial, and whether or not it helps or hurts the Crown’s case. The only exceptions are information protected by legal privilege (such as solicitor-client privilege or informer privilege) and information that is clearly irrelevant.

This obligation flows from your Charter rights, specifically Section 7 — the right to life, liberty, and security of the person, and the right not to be deprived of those except in accordance with the principles of fundamental justice. You cannot have a fair trial if you do not know the case you have to meet.

The duty is ongoing. If the Crown receives new evidence after initial disclosure — a new witness statement, an updated forensic report, a revised officer’s notebook — it must disclose that material as well.

What Crown Disclosure Typically Includes

The contents of a disclosure package vary depending on the nature and complexity of the charges. A straightforward impaired driving case will have a much smaller package than a multi-complainant sexual assault or a large-scale drug trafficking prosecution. However, most disclosure packages contain the following categories of material.

Police Officers’ Notes

Every officer involved in the investigation is required to keep contemporaneous notes. These notes document what the officer saw, heard, did, and said — from the initial call for service through to the arrest and beyond. Officer notes are often the backbone of the Crown’s case and one of the first things your lawyer will review in detail.

Witness Statements

Statements given by civilian witnesses, complainants, and co-accused persons. These may be written statements, audio-recorded statements, or video-recorded statements (often referred to as KGB statements). The differences between what a witness told police and what they later say at trial can be significant — and your lawyer will scrutinize those inconsistencies.

Video and Audio Evidence

This category has expanded enormously in recent years. Disclosure may include:

• Body-worn camera footage from responding officers
• In-car camera recordings from police cruisers
• Surveillance video from businesses, residences, or public spaces
• 911 call recordings
• Interview room recordings of the accused, complainants, or witnesses
• Cell phone videos seized during the investigation

Reviewing audio and video evidence carefully is essential. What appears on camera sometimes tells a very different story than what appears in the officer’s notes. For more on how digital material factors into your case, see our guide on collecting digital evidence.

Forensic Reports

Depending on the charges, disclosure may include forensic analyses such as:

• Toxicology reports (blood alcohol concentration, drug screening)
• DNA analysis
• Fingerprint analysis
• Ballistics reports
• Digital forensics (phone extractions, computer analysis)
• Autopsy or pathology reports

Other Reports

• Criminal record checks for the accused and, in some cases, for key Crown witnesses
• Synopses and narratives prepared by the investigating officer summarizing the case
• CPIC records (Canadian Police Information Centre)
• Prior judicial history (past bail orders, peace bonds, probation orders)

First Party Disclosure vs. Third Party Disclosure

Not all evidence relevant to your case is in the Crown’s hands. Understanding the difference between first party and third party disclosure is critical.

First Party Disclosure

First party disclosure is the material described above — everything in the possession or control of the Crown and the police. The Crown’s Stinchcombe obligation applies to first party disclosure. You are entitled to it as of right, and the Crown must provide it without you having to make a special application.

Third Party Disclosure

Third party disclosure refers to records held by individuals or institutions that are not part of the prosecution team. Common examples include:

• Medical and psychiatric records of the complainant or a witness
• Children’s Aid Society records
• School records
• Counselling or therapy records
• Employment records
• Records from other government agencies

The Crown does not have these records and cannot simply hand them over. To obtain third party records, the defence must bring an O’Connor application (named after the Supreme Court of Canada decision in R. v. O’Connor). In cases involving sexual offences, the procedure is governed by Sections 278.1 to 278.91 of the Criminal Code, which impose additional requirements — the defence must establish that the records are “likely relevant” to an issue at trial and that their production is necessary in the interests of justice.

Third party records can be case-changing. A complainant’s prior inconsistent statements to a therapist, a history of making similar allegations, or medical records that contradict the alleged injuries — these are the kinds of details that can transform the trajectory of a case. If you are facing serious charges, your lawyer should be assessing whether a third party records application is warranted. For more on how preliminary proceedings can shape these decisions, see our article on preliminary inquiries.

When Will You Receive Disclosure?

One of the most common frustrations for people facing criminal charges is the wait for disclosure. At your first court appearance, your lawyer (or duty counsel) will formally request disclosure from the Crown. But requesting it and receiving it are two different things.

Typical Timelines

Timelines vary significantly by courthouse and by the complexity of the case:

• Simple cases (e.g., a single-officer impaired driving charge with no injuries): Disclosure may be ready within 4 to 6 weeks of the first appearance.
• Moderate cases (e.g., domestic assault with multiple witnesses, or drug possession with a search warrant): 6 to 10 weeks is common.
• Complex cases (e.g., multi-accused drug trafficking, historical sexual assault, or cases involving extensive digital forensics): 3 to 6 months or longer is not unusual.

In Barrie and other Simcoe County courthouses, the Crown Attorney’s office generally provides initial disclosure within a reasonable timeframe, but delays happen — particularly when police services are slow to complete their reports or when forensic lab results are pending.

What If Disclosure Is Late or Incomplete?

Late or incomplete disclosure is not just an inconvenience — it is a constitutional problem. If you are not receiving disclosure in a timely manner, your lawyer can:

1. Write to the Crown formally requesting outstanding items and documenting the delay
2. Raise the issue in court and ask the presiding justice to order the Crown to produce disclosure by a specific date
3. Bring a formal application for disclosure, which can result in a court order compelling production
4. Argue a stay of proceedings under Section 11(b) of the Charter if the delay becomes unreasonable and pushes the case past the Jordan timelines (18 months in provincial court, 30 months in superior court)

Missing disclosure can also form the basis of a mistrial application if it surfaces during or after trial. The Crown’s obligation is not optional — it is enforceable.

Disclosure Is Not the Same as Evidence

This distinction matters. Disclosure is the material the Crown provides to the defence before trial. Evidence is the material that is actually presented in court, subject to the rules of admissibility.

Not everything in your disclosure package will be admitted as evidence at trial. Some items may be ruled inadmissible because they were obtained in violation of your Charter rights — for example, a statement you gave to police without being properly cautioned, or physical evidence recovered during an unlawful search. Other items may be excluded as hearsay, opinion evidence without a proper foundation, or evidence whose prejudicial effect outweighs its probative value.

Conversely, the Crown may choose not to call certain witnesses or introduce certain documents — even though those items were disclosed. Part of your lawyer’s job is to assess whether the Crown’s decision to omit something creates an opportunity for the defence.

How Disclosure Shapes Defence Strategy

Disclosure is not just something you receive and file away. It is the raw material from which your entire defence strategy is built. A thorough review of disclosure allows your lawyer to:

• Identify weaknesses in the Crown’s case — gaps in the evidence, inconsistencies between witnesses, missing forensic results, procedural errors by police
• Assess Charter arguments — Was there an unlawful search? Were your rights to counsel respected? Was there unreasonable delay?
• Evaluate plea resolution — Is the Crown’s case strong enough that negotiation is the most pragmatic path, or is it weak enough to take to trial?
• Prepare for cross-examination — Officer’s notes and witness statements are the ammunition for cross-examination. Every inconsistency, every omission, every exaggeration becomes a potential line of questioning.
• Determine whether further investigation is needed — Should the defence retain its own forensic analyst? Commission a private investigator? Obtain third party records?

If you are wondering whether you even need legal representation, our article on whether you need a lawyer explains why having counsel is essential — particularly when it comes to understanding and leveraging disclosure.

Reviewing Disclosure Effectively With Your Lawyer

You have every right to review your own disclosure. In fact, your input is invaluable — you know the people involved, the locations, and the context in ways that your lawyer does not. Here is how to make the review process productive.

Read Everything

Do not skim. Read the officers’ notes word by word. Read every witness statement. Watch every minute of video. Listen to every audio recording. Details matter — a single line in a notebook entry can become the turning point of a case.

Take Notes

As you review, write down anything that stands out:

• Statements that are factually wrong
• Events described out of order or with inconsistent timelines
• People who were present but are not mentioned
• Things you said or did that are omitted or mischaracterized
• Differences between what one witness says and what another says

Ask Questions

Bring your notes to your next meeting with your lawyer. Ask about anything you do not understand. Disclosure is filled with legal jargon, acronyms, and references to procedures that are not self-explanatory. Your lawyer should be walking you through the material, not just handing it to you.

Keep It Confidential

Disclosure is provided to you for the purpose of defending your charges. You must not post it on social media, share it with friends, send it to the complainant, or distribute it in any way. Misusing disclosure can result in additional criminal charges and will seriously damage your case.

Get Help With Your Criminal Case

Crown disclosure is the foundation of your defence. If you have been charged with a criminal offence in Barrie, Simcoe County, or anywhere in Ontario, the lawyers at Mor Fisher LLP will obtain your disclosure, review it thoroughly, and use it to build the strongest possible defence on your behalf. Whether your case involves a straightforward summary offence or a complex indictable matter, we will make sure you understand the evidence and your options at every stage.

Call us today at 705-252-2828 or contact us online to schedule a consultation.