For proceedings that are defended, parties will enter the discovery phase once the exchange of pleadings is complete. Discovery in Canada includes the production of relevant documents and oral examinations for discovery.
The scope of discovery is defined by the pleadings insofar as the pleadings set out the relevant issues in the litigation. Thus, if a document is relevant to an issue identified in the pleadings, it should be produced (subject to certain exceptions, such as any privilege that might attach to the document) even if the document might be unhelpful to the party producing it. Quebec has a different starting point for discovery. Specifically, a party to a Quebec proceeding need only disclose those documents on which it intends to rely at trial, unless the opposing party specifically requests further production.
If a party refuses to produce a document that another party believes is relevant to the issues in the proceeding, the latter party may bring a motion for production of the document. A court will order such production where the relevant documents are not protected by privilege and where the request for production is “proportional.” As an example of the principle of proportionality, a court could refuse to order a party to spend considerable time and resources to produce a large volume of documents where such documents are only marginally relevant to the issues in the proceeding.
In addition to producing relevant documents, the parties will participate in oral examinations for discovery. During such oral examinations, each party puts forth a witness to be questioned under oath by the other parties (or the other parties’ respective lawyers where such parties have lawyers) about the matters that are relevant in the litigation. Examinations for discovery, among other things, allow the parties to:
- learn about the other parties' cases;
- obtain helpful admissions; and
- assess the credibility and the demeanor of the witnesses giving evidence on discovery.
Where a party to be examined for discovery is an individual, the witness on such examination will be the individual.
Where the party to be examined for discovery is a corporation, the corporation’s witness (typically, but not always, an employee of the corporation) should be the person with the greatest knowledge of the matters that are relevant in the litigation.
Absent agreement of the parties or a court order, each party only produces a single witness that is examined for discovery by the other parties. Quebec is the exception to this general rule: under its Civil Code of Procedure, a party may examine more than one witness for each opposing party. As a matter of practice, parties in Quebec will attempt, among other things, to determine the number and identity of witnesses to be examined in the course of negotiating a case protocol. If the parties cannot agree to the terms of a case protocol, they may seek the court’s intervention.
More often than not, the witness produced by a party for examination for discovery will also be a witness for that party at trial.
Where a witness being examined does not know the answer to a relevant question, they may be asked to give an undertaking to seek out the answer. Similarly, a witness being examined may be asked to undertake to produce any relevant documents that have not yet been produced.
Unlike some other jurisdictions, witnesses being examined for discovery in a Canadian proceeding may refuse to answer a question on the bases, among others, of relevance (i.e. the question does not relate to any of the issues raised in the pleadings) or privilege. If the witness refuses to answer an arguably proper question, the examining party may bring a motion to compel the witness to do so. Likewise, if the witness refuses to provide an undertaking to produce additional relevant documents, the examining party may bring a motion to compel such production.
Parties to a Canadian proceeding require leave of the court to examine a non-party for discovery.