TREADSTONE LAW · ONTARIO · DIGITAL LEGAL SERVICES · EST. MMXXI ·TSL
Licensed by the Law Society of OntarioFlat fees published upfrontWe reply to messages within 1 business daySign in
Home/Articles/Family Law
№ 77 Family Law

What Happens When CAS Knocks on Your Door in Ontario

Learn what a CAS worker can and cannot do when they visit unannounced in Ontario, why they came, and sensible steps to take at the door.

Family Law5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 6, 2026
← All articles
Key takeaways
  • Anyone with reasonable grounds to suspect a child needs protection must report it, and the society must assess and verify a report as soon as possible.
  • A worker may interview a child with or without a parent's knowledge, but removal without a warrant is limited to cases of substantial risk.
  • Any agreement you make is valid only if you are informed, voluntary and have had a chance to get independent advice.

An unannounced visit from a children's aid society (CAS) worker is stressful. You may not know why the worker is there, what they are allowed to do, or whether you have to answer questions on the spot.

This article explains in plain language why visits happen, what Ontario's child protection law lets a worker do, and calm, practical steps you can take. It is general information, not advice about your situation.

Why a worker may be at your door

Anyone who has reasonable grounds to suspect that a child needs protection must report that suspicion immediately to a society, and must report directly rather than rely on someone else to do it. A society that receives a report must, as soon as possible, carry out an assessment and verify the reported information. How that is done in a particular case depends on the circumstances, so it is worth confirming with a lawyer.

No legal action can be brought against a person who reports, and the duty to report applies even if the information is confidential or privileged. That protection does not apply if the person acted maliciously or without reasonable grounds. A society may also refuse to show you your own record if doing so could identify someone who was required by law to provide information, such as a person who reported. You still have a right of access to any part of the record that can reasonably be severed from the part that is withheld. So you may not be told who made the report.

What the worker is allowed to do

Removing a child is a different matter. A justice of the peace may issue a warrant to bring a child under 16 to a place of safety if satisfied on sworn information that the child needs protection and a less restrictive option is unavailable or would not be enough. A worker may act without a warrant only if they believe on reasonable and probable grounds that a child under 16 needs protection and that waiting for a warrant would put the child's health or safety at substantial risk. In other situations, the Act's removal powers depend on a warrant or court order.

What to do at the door

Being cooperative and getting advice are not opposites. Many parents do both.

What can happen after the visit

The Act says help for parents should, where possible, be given on the basis of mutual consent, and that the least disruptive course of action that is available and appropriate should be considered. The paths below show how things can go.

PathWhat it means
No further stepsThe society finishes its assessment and the file may close.
Voluntary servicesSupport agreed with you, based on mutual consent.
Temporary care agreementA parent temporarily unable to care for a child may agree to society care. The term cannot exceed six months, and with a Director's written approval the total cannot exceed 12 months.
Court applicationA society may apply to the court to decide whether a child is in need of protection.

If a child is brought to a place of safety, then as soon as practicable, and in any event within five days, the child must be brought before the court for a hearing, returned to the person who last had charge, or placed under a temporary care agreement or an agreement with a 16- or 17-year-old.

What to do next

If a worker has visited, write down what happened while it is fresh. Keep any papers the worker left. Do not delete messages or records. If a court application is started, the Family Law Rules set maximum times, including a first hearing within 5 days if the child was brought to a place of safety and a hearing within 120 days of the start of the case. The court may lengthen a time only if the child's best interests require it, and the parties cannot lengthen it by consent. Child protection hearings are held without the public present unless the court orders otherwise.

Because things can move quickly, speak with a lawyer early, ideally before you sign anything or agree to a plan.

Frequently asked questions

Can a CAS worker take my child right away?

Only in limited situations. A worker may bring a child under 16 to a place of safety without a warrant if they believe on reasonable and probable grounds the child needs protection and there would be a substantial risk in the time needed to get a warrant. In other situations, removal depends on a warrant or court order.

Will I find out who reported me?

Often not. A society may refuse access to your record if it could identify someone who was required by law to provide information, such as a person who reported. You may still be entitled to any part of the record that can reasonably be separated from the withheld part.

Can the worker talk to my child without me there?

Yes, in some cases. The standards allow a child to be interviewed inside or outside the home, with or without the parent's knowledge or consent, depending on the circumstances, though getting agreement or giving notice is preferred.

Should I sign what the worker gives me?

Not until you understand it. An agreement is valid only if you are reasonably informed, have had a chance to get independent advice and act voluntarily. A lawyer can explain what a document means before you sign.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

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.

This is a family law question

Start a file online — flat, published fees, reviewed by a licensed lawyer before a dollar is owed.

ContactStart a File →