An examination for discovery is a pre-trial procedure in Ontario civil litigation where parties to a lawsuit question each other under oath, outside of court, with a court reporter transcribing everything. It generally takes place after the Statement of Claim and Statement of Defence have been exchanged, and is designed to clarify the facts, narrow the issues, and reduce surprises at trial. There is no judge present, but your lawyer can object to improper questions, and the resulting transcript can later be used at trial to challenge inconsistent testimony or support a summary judgment motion.
- An examination for discovery happens after pleadings are exchanged — once the Statement of Claim and Statement of Defence are on file.
- It takes place outside the courtroom, with no judge or jury present, but under oath with a court reporter transcribing everything said.
- The purpose is to clarify facts and narrow issues before trial — Ontario courts specifically discourage "trial by ambush."
- Your lawyer can object to improper questions during the examination, and can make legal arguments to protect your position.
- The transcript can later be used at trial to challenge inconsistent testimony, or can support a summary judgment motion seeking to avoid trial altogether.
- Answer honestly and say "I don't know" or "I don't recall" when genuinely true — guessing to appear certain is one of the most damaging mistakes a witness can make.
The Short Answer
An examination for discovery is a formal, pre-trial question-and-answer session, conducted under oath and outside the courtroom, where parties to an Ontario civil lawsuit question each other to clarify the facts and narrow the issues before trial. It is not a trial itself, but what is said becomes a permanent part of the record that can resurface later.
When It Happens in the Process
Examinations generally take place after pleadings have been exchanged — once the Statement of Claim and Statement of Defence are on file — as one of the key steps in the broader civil lawsuit timeline in Ontario. It typically precedes any summary judgment motion or trial, since the evidence gathered often shapes how the rest of the case proceeds.
What Actually Happens in the Room
There is no judge or jury present. The setting is typically a boardroom, or increasingly a video conference, with the parties, their lawyers, and a court reporter who transcribes everything said. Ontario courts specifically disfavour “trial by ambush,” so the process is designed to ensure both sides understand the facts and evidence well before trial, reducing the risk of surprises.
Your Lawyer's Role During the Examination
Your own lawyer is present to object to improper questions and, where necessary, make legal arguments to protect your position during the examination. This is a meaningfully active role, not a passive one — a well-prepared lawyer can prevent unfair or overly broad questioning from creating problems in the transcript.
Answer the question actually asked, as precisely and honestly as you can, and stop there. Volunteering extra information beyond what was asked is one of the most common ways witnesses inadvertently create new problems for themselves.
How the Transcript Gets Used Later
The transcript is not simply filed away. It can be used at trial to challenge a witness whose testimony there differs from what they said at discovery, and it can become part of the evidentiary record supporting — or defeating — a later summary judgment motion. A strong, consistent discovery transcript is a real asset; an inconsistent one is a real liability.
A witness who guesses at an answer to seem more certain, and is later shown to be wrong, damages their credibility far more than simply saying "I don't know" or "I don't recall" when that is genuinely the truth.
Fraud-related claims, covered in our guide on civil fraud claims in Ontario, often involve particularly detailed and consequential examinations, since the credibility assessed here can carry significant weight later.
How to Prepare
- Meet with your lawyer beforehand to review the key facts, documents, and likely areas of questioning.
- Review your own records — emails, contracts, financial records — relevant to the dispute.
- Commit to truthful, precise answers rather than trying to argue your case during the examination itself.
- Expect to feel uncomfortable with uncertainty at times — that is normal, and honesty matters far more than appearing unshakeable.
What to Do Before Your Examination Date
Schedule dedicated preparation time with your lawyer well before the date, rather than reviewing everything the night before. If your case involves a class proceeding, information held by a non-party, or concerns about hidden assets or evidence addressed by a Mareva injunction or Anton Piller order, your discovery strategy should account for those issues specifically. Call 416-274-2222 for a free, confidential consultation if your case is approaching this stage.
Frequently Asked Questions
It is a pre-trial procedure in Ontario civil litigation where parties to a lawsuit question each other under oath, outside of court, with a court reporter creating a full transcript. It is a fact-finding and issue-narrowing tool, not a trial itself.
No. There is no judge or jury in the room. It typically takes place in a boardroom setting or, increasingly, online, with only the parties, their lawyers, and the court reporter present.
Say so honestly. Answering "I don't know" or "I don't recall" when that is genuinely true is appropriate and expected. Guessing or fabricating an answer to appear more certain is far more damaging if it is later shown to be inaccurate.
Yes. Your lawyer can object to improper questions and make legal arguments during the examination to protect your interests, similar in principle to objections at trial, though the specific scope of objections available can differ.
It can be used at trial to challenge a witness whose later testimony is inconsistent with what they said at their examination, and can also support — or undermine — a later summary judgment motion, since it becomes part of the evidentiary record.
Meet with your lawyer beforehand to review the key facts and likely areas of questioning, review your own documents, and go in committed to answering truthfully and precisely rather than trying to argue your case or win points during the examination itself.
Yes. Courts can and do sanction improper conduct during examinations, and a witness who is evasive, argumentative, or dishonest can damage their credibility in ways that affect the rest of the case, including at trial.