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Understanding Evidence Requirements in Ontario Family Court

This is a "live" document that I intend to update from time to time.


Whenever trial sitting season approaches, we get busy with helping client prepare their evidence for trial. And with this comes the same bitter pills that all litigants have to swallow. Some of your evidence, evidence that you consider critical, is not going to see the light of day. There has been many heated discussions with clients when they are forced to come to terms with the reality on what's admissible and what's not. I'll note that at the very end of this article.


Navigating family court in Ontario can be challenging, especially when it comes to understanding what evidence is necessary to support your case. Whether you are dealing with custody, access, support, or property issues, knowing how to gather and present evidence effectively can make a significant difference in the outcome. This guide explains the types of evidence accepted in Ontario family court, how to prepare your evidence, and practical tips to ensure your case is clear and convincing.



What Counts as Evidence in Ontario Family Court


Family court evidence includes anything that helps prove your claims or supports your position. The court relies on evidence to understand the facts and make decisions that affect families. Evidence can be:


  • Documents such as financial records, emails, text messages, or medical reports

  • Witness testimony from people who have relevant information

  • Expert reports like psychological assessments or appraisals

  • Physical evidence such as photographs or videos


The key is that evidence must be relevant, reliable, and admissible under the rules of the court. More on "admissible" later at the end.


Your evidence brief is "proposed" evidence. It's not evidence until it gets accepted at trial. All evidence has to be authenticated before it is admitted into evidence; and it has to be in evidence before you can ask a witness about it.


So if you have a damning picture of the other party working a construction job, when they are claiming they are unable to work, you need to get it into evidence so you can ask questions about it.

Does this picture fairly and accurately portray you?

Once it's authenticated and admitted, you can ask all the questions you want about it.


Maybe you have an email from the other party

Do you recognize this document and can you tell the Court what it is?

From there you can ask questions about, or have the witness read out a highlighted passage.


Types of Evidence Commonly Used in Family Cases


Documentary Evidence


Documents are often the backbone of family court cases. Examples include:


  • Financial statements to prove income or expenses for support claims

  • Communication records like emails or text messages to show interactions between parties

  • School or medical records to support custody or access arguments

  • Agreements or contracts related to property or parenting arrangements


Make sure documents are organized, legible, and clearly linked to your case points.


Witness Evidence


Witnesses come in two forms, participatory and experts; although experts can also be participatory as well.


Participatory are witnesses who are there to testify as to what they saw or said. They are NOT there to give opinion. So a daycare provider can talk about what she saw on a particular day for example. But them giving an opinion as to what's best for the child would be steering out of their lane (unless they are being listed and accepted as an expert witness - but probably not the case).


Witnesses can provide firsthand accounts of events or conditions relevant to the case. This might include:


  • Family members or friends who observe parenting abilities or living conditions

  • Professionals such as teachers, doctors, or counselors who have worked with the children

  • Neighbors or community members who can speak to the parties’ behavior or circumstances


Witnesses usually provide evidence through affidavits or live testimony during hearings.


Expert Evidence


Expert witnesses offer an opinion. This is the key different between an participatory and an expert witness.


Some expert witnesses may also be participatory in nature like a child therapist. They actually met and observed the child, and based on those observations are giving an opinion. Other expert witnesses who are not participatory in nature may be a business valuator who simply examines the books and come up with a report.


Experts offer specialized knowledge beyond what the average person knows. Common experts in family court include:


  • Psychologists or social workers assessing child welfare or parental capacity

  • Accountants or financial experts analyzing income and expenses

  • Medical professionals providing health evaluations


Expert reports must be prepared carefully and often require prior court approval.


Physical and Digital Evidence


Photos, videos, or recordings can illustrate living conditions, injuries, or interactions. Digital evidence like social media posts or GPS data may also be relevant but must be obtained legally and presented clearly.


How to Prepare Evidence for Family Court


Organize Your Evidence Clearly


When physical copies are required, create a binder or digital folder with all your evidence sorted by category. Label each item with a brief description and date. This helps you and the court follow your case easily. You'll need 3 copies when you come to Court.


Even if you were ordered to provide only digital copies of evidence, bring 3 physical ones. You never know when there is a computer glitch and you have to go old school; like forgetting your laptop power cable.


Provide Affidavits for Witnesses


If your Trial Scheduling Endorsement Form (TSEF) asks for Affidavits from all your witnesses (and maybe you), your witnesses will need to prepare affidavits, which are written statements sworn under oath. Affidavits summarize what the witness knows and support your claims without needing the witness to appear in person initially.


Follow Court Rules and Deadlines


Ontario family court has strict rules about when and how evidence must be shared with the other party and the court. Missing deadlines or failing to disclose evidence can weaken your case.


The last thing you want is to serve late and attempt to file and the Court Clerk rejects the filing as being late. This ios often followed up by the other party filing a motion to have your materials excluded from trial due to late filing. Don't leave it up to chance to get your materials accepted late, get them served and filed with the Court well in advance of your deadline.


Use Clear and Simple Language


Avoid legal jargon or complicated explanations. Present your evidence in a way that judges and lawyers can understand quickly.


Examples of Evidence in Different Family Court Issues


Decision Making and Parenting Time


  • School reports showing the child’s progress and environment

  • Text messages demonstrating communication between parents

  • Affidavits from witness/caregivers about the child’s routine and needs


Child and Spousal Support


  • Pay stubs and tax returns to prove income

  • Receipts for child-related expenses such as medical bills or extracurricular activities

  • Expert financial reports if income is complex or disputed


Property Division


  • Property deeds and mortgage statements

  • Valuation reports for real estate or business assets

  • Bank statements showing account balances and transactions


Common Challenges with Evidence in Family Court


Evidence Relevance


Not all information is useful. Evidence must directly relate to the issues in your case. Irrelevant evidence can distract or confuse the court. A good rule to live by...


You don't get to present ALL your evidence, just your BEST evidence.

Evidence Admissibility

Some evidence may be excluded if obtained improperly or if it violates privacy laws. For example, secretly recorded conversations might not be accepted where you were not one of the parties of the conversation. Not only is this not admissible but it's criminal.


Anything marked "WITHOUT PREJUDICE" is inadmissible, not only for the person who received it, but for the person who sent it as well.


The one that catches everyone up, is hearsay. More of this at the end. It's so important it deserves it's own section.


Conflicting Evidence

When parties present opposing evidence, the court weighs credibility and consistency. Clear, well-documented evidence strengthens your position.


Settlement Talks

Discussions of settlement talk nature are considered privledged and inadmissible. So if you have emails with the other party talking about terms of settlement, it's not admissible. This includes offers to settle.



Tips for Presenting Evidence Effectively


  • Be honest and transparent: Misleading or hiding evidence damages your credibility.

  • Prepare summaries: Briefly explain what each piece of evidence shows.

  • Practice your presentation: Whether you speak in court or submit written materials, clarity is key.

  • Seek legal advice: A family lawyer can help you understand what evidence matters most and how to present it.


What Happens if You Don’t Have Enough Evidence?


If your evidence is weak or incomplete, the court may:


  • Delay decisions to allow more evidence gathering

  • Make decisions based on the best available information

  • Favor the party with stronger evidence


Gathering evidence early and thoroughly improves your chances of a fair outcome.


What is Hearsay?

Hearsay is a legal term that refers to an out-of-court statement made by someone other than the witness who is testifying. This statement is presented to prove the truth of the matter asserted in the statement. Hearsay is generally not admissible as evidence in court due to concerns about its reliability. Statements made by the parties are one of the exceptions to hearsay, so emails you get from the otherside are fair game.


Key Characteristics of Hearsay

  • Out-of-Court Statement: The statement must be made outside of the current trial or hearing.

  • Offered for Truth: The statement is being used to prove the truth of the content within it.

  • Testifying Witness: The person who made the original statement is not present to testify about it.


Exceptions to Hearsay

 There are several exceptions where hearsay may be admissible, including:

  • Excited Utterance: A statement made in response to a startling event.

  • Present Sense Impression: A statement describing an event while it is happening.

  • Statements for Medical Diagnosis: Statements made for the purpose of medical treatment.

  • Business Records: Records kept in the regular course of business.


Buiness records might need a bit more explanation. These are things that were generated automatically or at the time. They weren't "authored" after the fact. So things such as:

  • Bank records

  • Report cards

  • Financial Statements

  • Supervision notes taken at the time

  • Therapist notes taken at the time

  • Medical record

  • Receipts and Invoices

  • Attendance sheets

  • Police incident reports (although the police officer may be required as a witness to explain the notes)


Examples of Hearsay

Text Messages

Text messages are often not admissible, because they can't be validated (no date time stamp for example, and the screen capture showing the person's name is just a contact name typed into your contacts and may not actually be them in reality). If you get the other party to admit to the text message you are good, but they often can easily deny it. Always use email or one of the many apps like OurFamilyWizard or AppClose which are admissible.


Expert Valuations

Expert valuations should be accompanied with an affidavit when you get it. That gives you a chance of having it be admitted in the event the author of the report is unable to attend due to death or some other dire circumstance. But even with that, the person who authored the report needs to be available as a witness if they are alive and available if the other party is refuting it's contents.


The one exception is when your TSEF specifically leaves it up for the trial judge to determine if those valuations should be allowed or not. Otherwise, under the terms of the TSEF, you are not permitted to serve hearsay evidence and all those valuable assessments will never see the light of day.


Emails/Letters from non-witnesses

You might have a great email from the teacher of your child. Or a brilliant character reference for yourself, or an email from your boss. Unless those people are witnesses, these emails will never be admitted into evidence or given any weight in trial. One of the steps to getting evidence admitted is to have it authenticated by the person who sent it, if they are not there to authenticate it, you're stuck.


You might have a letter from someone who conducted a business valuation for you just prior to the date of marriage that is worth tens of thousands of dollars to your benefit for the equalization payment calculation, but if that report is not in the form of an affidavit and/or that person is not available as a witness, you're out of luck.


You could have a text message from the parent of a friend of your child, saying they smelt alcohol on the breath of your ex and saw them drive away with the children in the car. Or a text saying they say your ex beat the children. If they are not called as a witness, those texts won't see trial.


Importance in Legal Proceedings

Understanding hearsay is crucial in legal contexts as it helps to maintain the integrity of evidence presented in court. Courts aim to ensure that only reliable and verifiable information is considered in legal decisions.


Trying to use hearsay evidence is akin to asking the Court to rely on rumours. The Court needs to hear it directly from the person while they are under oath.


 
 
 

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