How to prepare for a criminal trial in Ontario starts with protecting your position while the case is pending: follow every release condition, preserve information, review the Crown’s disclosure with your lawyer, and be ready for each court date. Do not try the case on social media, delete material, or contact a complainant or witness to discuss the allegations. If you have received disclosure or a trial date, getting timely advice from a criminal lawyer Toronto can help you understand what needs attention first.

How to prepare for a criminal trial in Ontario

Practical pre-trial preparation means giving your lawyer a complete account, preserving potential evidence, identifying useful witnesses, and complying with court orders while the case moves toward trial. It does not mean building a public defence online or trying to persuade witnesses to support your version.

A criminal trial may be in the Ontario Court of Justice or, for some more serious matters, the Superior Court of Justice. The schedule, procedures, and whether there is a preliminary hearing depend on the charge and how the Crown proceeds, so keep every notice and ask your lawyer what each upcoming date is for.

Start early. Video can be overwritten, phone data can disappear after a device change, and witnesses’ memories can fade. A lawyer cannot responsibly assess the prospects of going to trial until the available disclosure and your full factual account have been reviewed.

Start with a private, complete account for your lawyer

Give your criminal defence lawyer a private, honest, chronological account of what happened, including facts you think are unhelpful. Lawyer-client communications are generally confidential, and surprises are harder to manage when they emerge late in the case.

Prepare a timeline with dates, times, addresses, names, phone numbers, and what happened before, during, and after the alleged offence. Include relevant communications, prior interactions with involved people, and details that may help locate records or video.

• Bring the charging documents, appearance notices, release papers, and every version of your bail conditions.
• List all potential witnesses, including people who may not support you but have relevant first-hand information.
• Identify devices, accounts, vehicles, workplaces, stores, or buildings that may hold relevant records.
• Tell your lawyer about prior statements you made to police, 911, school staff, employers, insurers, or anyone else about the incident.

Do not delete, edit, backdate, or create messages, posts, screenshots, or records. Do not publish about the case or use a friend to communicate with a complainant or witness. Those actions can create new problems and may affect the evidence available at trial.

Review the Crown’s disclosure and identify what is missing

Disclosure is the material the Crown provides about its case, and reviewing it carefully is the foundation of trial preparation. It may include police notes, witness statements, recordings, photographs, video, forensic reports, and information about seized property.

The Crown’s disclosure duty is a central part of a fair criminal process, reflected in fair-trial principles including section 7 of the Canadian Charter of Rights and Freedoms. Your lawyer can assess what has been provided, what may be relevant but missing, and what steps may be appropriate to seek further material.

Read disclosure with counsel rather than reacting to it by contacting people named in it. Make a working list of questions: Does the timing match? Is a referenced recording missing? Is a witness’s knowledge first-hand or based on what someone else told them? Are there gaps in the continuity of a video, text thread, or police investigation?

For example, a person charged with assault may receive police notes referring to a bar’s surveillance footage but no copy of the footage. They should tell their lawyer promptly, identify the precise venue and approximate time, and preserve any receipt or ride-share record that helps narrow the time period. Whether and how the footage can be obtained is a legal and practical question for counsel, not a reason to approach staff or witnesses yourself.

Preserve and organize evidence lawfully

Preserve original evidence as soon as possible, with its dates, source, and surrounding context. A cropped screenshot without the sender, date, or full conversation may be much less useful than the original thread or a properly preserved export.

• Save texts, emails, direct messages, call logs, voicemails, photos, and recordings in their original form where possible.
• Keep receipts, banking records, parking records, transit records, calendars, work schedules, and travel confirmations that may establish timing or location.
• Record the address of any camera, the relevant date and time range, and who controls the footage.
• Write down the names and contact details of people with relevant first-hand observations.
• Make a copy for safekeeping, but retain the original device or original files unless your lawyer advises otherwise.

Give the materials and your notes to counsel in an organized folder or list. Do not access another person’s accounts, record communications unlawfully, confront a complainant, or attempt to obtain evidence by breaching a court order.

Identify witnesses and prepare them properly

A useful witness is someone with relevant first-hand knowledge, not simply someone who believes you are a good person or agrees with your position. Give your lawyer each person’s full contact information and a short, neutral summary of what that person personally saw, heard, did, or received.

You can tell a potential witness that a lawyer may want to speak with them and explain basic court logistics, but do not tell them what to say or try to align their evidence with yours. Witness coaching can damage credibility and may create serious legal difficulties.

Your lawyer may decide that a witness is unnecessary, that an agreed fact or document is sufficient, or that formal attendance is needed. If a witness must be required to attend, counsel can advise whether a subpoena or another procedural step is appropriate.

Consider someone charged with mischief after an argument in an apartment building. A neighbour who only heard shouting may assist on timing or noise, while a concierge who saw the hallway and preserved a log may have more direct evidence. Both should be identified early, but neither should be asked to change or expand what they actually observed.

Make a trial-preparation plan with your defence lawyer

A trial-preparation meeting should identify the real disputed issues, the evidence that matters, and the decisions that must be made before the hearing begins. The Crown bears the burden of proving guilt beyond a reasonable doubt; the accused does not have to prove innocence.

A useful agenda includes:

• the allegation, the elements the Crown must prove, and the facts in dispute;
• disclosure gaps, possible legal applications, and any Charter issues;
• potential witnesses, exhibits, recordings, admissions, and agreed facts;
• the expected order of witnesses and how cross-examination may arise;
• interpreter, accessibility, medication, or communication needs; and
• who will update you if schedules change and how to reach counsel during trial days.

Whether an accused person should testify is a case-specific decision made with legal advice after the evidence and risks have been assessed. Testifying can allow a judge or jury to hear your account directly, but it also means facing cross-examination by the Crown; remaining silent is not proof of guilt.

Keep attending court and comply with every condition

Attend every required court appearance and comply exactly with every release condition until it is changed by a court. Missing court or breaching bail conditions can lead to additional charges, an arrest warrant, or a review of your release.

Put dates, courtroom information, and reporting obligations in more than one calendar. If work, childcare, transportation, illness, a no-contact term, or another practical problem creates a conflict, tell your lawyer promptly rather than assuming an adjournment or exception will be available.

If you are in custody or need advice about release, a bail hearing lawyer Toronto can advise on the process and the conditions that may apply. Eligible people may also seek assistance through Legal Aid Ontario.

Prepare for the day of trial

In the days before trial, confirm where to go, when to arrive, what to bring, and how to reach your lawyer. Plan to arrive early enough for security screening and to deal with unexpected travel delays.

• Confirm the courthouse, courtroom or virtual-hearing instructions, start time, and expected trial dates.
• Bring identification, necessary documents, glasses, medication, and any materials your lawyer has asked you to bring.
• Arrange work, childcare, transportation, and support needs in advance.
• Keep your phone silent and do not post, text witnesses, or discuss evidence in public areas of the courthouse.

Wear clean, neat, conservative clothing and follow your lawyer’s direction about when to speak. For more on conduct, courtroom expectations, and what a criminal trial may feel like, review the related guidance before your court date.

What happens once you are going to trial?

Once a case is going to trial, the Crown presents evidence and the defence can test that evidence through objections, cross-examination, and its own evidence where appropriate. The judge decides the case in a judge-alone trial; in eligible cases, a jury may decide guilt or innocence.

Trials in Canada can involve juries for some indictable offences, but many criminal matters are heard by a judge alone. A not-guilty plea does not guarantee that a trial will occur, because a case can be resolved, withdrawn, stayed, or otherwise concluded before the scheduled hearing.

The detailed steps in a trial depend on the charge, court, election, and evidence. A preliminary hearing, where available, is not the trial itself; it is a separate proceeding in certain indictable matters.

Related decisions and next steps

Whether to resolve a charge or continue toward trial requires individualized advice based on the disclosure, available evidence, legal issues, and your circumstances. It is not a decision that can be made safely from the charge alone or from a general internet checklist.

For the broader chronology from charge to resolution, see this overview of criminal trial stages. If a conviction occurs, appeal rights and deadlines can be important; a lawyer can advise whether an appeal to the Court of Appeal or another appellate court is available in the particular case.

FAQ about pre-trial preparation

What does it mean to go to trial?

Going to trial means the court will hear evidence and decide whether the Crown has proved the charge beyond a reasonable doubt. It requires preparation, but it does not mean you should discuss the facts publicly or try to manage witnesses yourself.

How risky is going to trial?

Going to trial has risks because the evidence may be accepted or rejected in ways that cannot be predicted with certainty. The practical risks and options depend on the charge, disclosure, witnesses, legal issues, potential sentence, and your own instructions to counsel.

What should I not say in front of a judge?

Do not interrupt, argue directly with the judge, discuss facts without your lawyer’s advice, or make comments to witnesses, the complainant, or the Crown. If you do not understand what is happening, ask your lawyer privately when there is an appropriate opportunity.

What if I need an interpreter or accommodation?

Tell your lawyer as early as possible if you need an interpreter, disability accommodation, assistive technology, medication breaks, or another support to participate meaningfully. Early notice gives the court and counsel more time to make appropriate arrangements.

For answers to other common questions about charges, court, and criminal procedure, consult the general criminal law faq.

Speak with a Toronto criminal defence lawyer

Early advice can help you preserve important material, understand disclosure, and make a practical plan for the court dates ahead. Trial preparation is most effective when concerns about evidence, witnesses, and release conditions are raised before the hearing begins.

Call 647-351-HELP (4357) or book a free consultation to discuss your case with Jeffrey I. Reisman.