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Correcting or Closing a CAS File in Ontario After an Unfounded Investigation

Want to correct or address a Children's Aid Society file after an unfounded investigation in Ontario? Here are your general options and next steps.

Family Law5 min readTSLBy the Treadstone Law team · OntarioUpdated 2026-07
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Key takeaways
  • " Even where no further action is taken, the Society generally keeps a record that the investigation happened.
  • - A closed file can still exist in a Society's records and, in some circumstances, be referenced again if there's a later report or contact.
  • Contact the Children's Aid Society directly and ask about its process for reviewing or correcting a closed file.

A Children's Aid Society investigation can end without any finding that a child needs protection — but the fact that it happened at all can still feel like it follows you. Many parents want to know whether they can correct information they believe is wrong, or have a file addressed accurately, after an investigation doesn't proceed any further.

This guide explains, in general terms, what options a parent generally has when a CAS investigation ends without a protection finding, and how to go about raising a correction.

What Happens When an Investigation Doesn't Proceed

Not every report to a Children's Aid Society leads to a court case. Many investigations conclude with no ongoing protection concern identified — sometimes described informally as "unfounded." Even where no further action is taken, the Society generally keeps a record that the investigation happened.

Why the Record Still Matters

Options for Correcting or Closing a File

  1. Contact the Children's Aid Society directly and ask about its process for reviewing or correcting a closed file.
  2. Put your concerns in writing, specifically identifying what you believe is inaccurate and why.
  3. Ask what documentation or evidence the Society will consider as part of reviewing your request.
  4. Follow the Society's internal complaint or review process if your initial request doesn't resolve the issue.
  5. Speak with a family lawyer if the Society's response doesn't address your concerns, or if the record is affecting another legal matter.

What a Correction Request Can — and Can't — Achieve

A Society may agree to amend, annotate, or clarify a record, but it generally won't delete an entire file simply on request, since it may have its own record-keeping obligations to meet. Managing expectations matters here: being specific and factual in a written request tends to be far more effective than a general objection to the file existing at all.

What Makes a Correction Request More Effective

When to Get a Lawyer Involved Early

Not every correction request needs a lawyer from the outset — many parents start by contacting the Society directly. But it's worth involving a lawyer sooner rather than later if the record is already affecting another legal matter, such as a parenting dispute or a new investigation, or if the Society's internal process hasn't produced a clear answer within a reasonable time. A lawyer can also help you frame a request in terms that are more likely to get a substantive response.

Investigation Outcomes at a Glance

OutcomeWhat it generally means
No protection concern identifiedInvestigation ends without ongoing CAS involvement or court action
Ongoing voluntary servicesFamily agrees to some support or monitoring, without a court finding
Court application startedThe Society believes a court finding is needed and starts a protection case

Frequently asked questions

Can I get my CAS file completely deleted?

Generally not simply on request — Societies have their own record-keeping obligations — but you can ask about correcting inaccurate information, or adding your own written response to the file.

Does an unfounded investigation show up on a background check?

A closed child protection investigation is generally a different kind of record than a police background check. Ask the specific organization requesting a check what it actually reviews, since practices vary.

How long does CAS keep records after a case closes?

Retention practices are set by the Society and applicable rules, and weren't independently confirmed for this article — ask your Children's Aid Society directly about its current retention policy.

What if the Society won't correct information I believe is wrong?

Escalate through the Society's internal review or complaint process first. If that doesn't resolve the issue, a family lawyer can advise on what further options may be available to you.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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