Conversion, Detinue, and Trespass to Chattels: Interference with Rights of Ownership or Rights of Possession (Part Three) | Bulat Paralegal Service


Last Updated: August 22 2026

Question:How do I prove trespass to chattels in Ontario when someone wrongfully interferes with my personal belongings?

Answer:Bulat Paralegal Service can help you assess whether your situation fits trespass to chattels in Ontario, since it requires direct, immediate, wrongful interference with your possession or control of a chattel (your personal property that is not removed from you), and it differs from conversion or detinue where you are deprived of possession.  An Ontario paralegal from Bulat Paralegal Service can review what happened, identify the responsible party, and help you frame the claim for damages such as actual loss, devaluation, and potentially general or punitive damages depending on intent and egregious conduct.  Call (705) 664-0334 to get started.

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Wrongful Interference With Personal Belongings

Trespass to chattels involves wrongful harm by interference with chattels, chattels being legally defined as objects unattached to land that include personal belongings such as household furnishings, artwork, clothing, appliances, among other things, as well as commercial belongings such as moveable machinery, goods for sale as inventory stock, animals as livestock, among various other objects.

Note: Please contact Bulat Paralegal Service by phone at: (705) 664-0334 to discuss any specific questions that you may have.

The Law

Trespass to chattels is similar to conversion and detinue whereas all three relate to wrongful interference with a chattel; however, the distinguishing nuance with trespass to chattels is that the object remains in possession or control of the owner or person with rightful possession which differs from conversion and detinue where the owner or person with rightful possession is deprived of possession.  Perhaps the easiest way to explain the difference is to use the criminal law term in that conversion or detinue may arise from theft (criminal law term) of the object, being interference by removing the chattel from the possession of the rightful owner or person with right of possession and trespass to chattels may arise from vandalism (criminal law term) being interference without removal of the chattel.

The elements necessary to give rise to the tort of trespass to chattels were well articulated in Ontario Consumers Home Services v. Enercare Inc., 2014 ONSC 4154, where it was stated:


[50]  In Hudson’s Bay Company v. White, [1997] O.J. No. 307 (Ont.Gen.Div.) Lederman J. at para. 8 referenced the criteria necessary for trespass to chattels:

In Clerk and Lindsell on Torts, 17th ed.  (London: Sweet and Maxwell, 1995), at p.  705, the authors define trespass to chattels, or “trespass to goods”, as being concerned with “the direct, immediate interference with the plaintiff’s possession of a chattel”.  Halsbury’s offers a similar definition at Vol.  45, para.  1491: “Trespass to goods is an unlawful disturbance of the possession of goods by seizure or removal, or by a direct act causing damage to the goods”.

Claimable Damages

Where chattels, such as an automobile as a personal belonging, or other thing, is harmed per the law of trespass to chattels, a lawsuit may make claim for the resulting actual loss suffered, meaning the devaluation of the object as a result of the harm to the object.  Furthermore, depending on the circumstances, especially where the trespass was troublesome and emotionally disruptive, general damages may be appropriate; and additionally, where the trespass was intentional or egregiously malicious, punitive damages may be applicable.

Conclusion

The tort of trespass to chattels is found within the family of interference torts which include, among others, the torts of conversion and detinue.  The key difference with the tort of trespass to chattels and the tort of conversion or the tort of detinue, is that with trespass to chattels, the chattels, meaning goods or personal belongings, remain with the rightful owner or person with rightful possession.

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