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Conversion, Detinue, and Trespass to Chattels:
Interference with Rights of Ownership or Rights of Possession (Part Three)
Last Updated: August 22 2026
Question: In Ontario, when can I claim damages for wrongful interference with my personal belongings without losing possession?
Answer: If your personal belongings (or other unattached goods) were interfered with in Ontario while you still kept possession or rightful control, you may have a civil claim for trespass to chattels, which is distinct from conversion or detinue because those typically involve wrongful deprivation of possession. Olson Craig Legal can help you assess the facts, including the direct, immediate interference, whether actual harm or devaluation occurred, and whether general or punitive damages may apply based on the conduct. Call Olson Craig Legal at (226) 886-2001 to speak with a lawyer or paralegal about your options and next steps across Ontario.
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Wrongful Interference With Personal Belongings
Trespass to chattels is, essentially, the proper civil law term for referring to harm to chattels, meaning objects unattached to land, such as personal belongings including furniture, clothing, appliances, cars, boats, among other things, as well as commercial belongings such as mobile equipment, products and supplies, materials, among other business related objects.
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.
NOTE: A significant number of inquiries related to “lawyers near me” or “best lawyer in” typically signify a pressing need for competent legal assistance instead of a specific job designation. In Ontario, licensed paralegals are governed by the same Law Society that regulates lawyers and are permitted to represent clients in specific litigation cases. Advocacy, legal assessment, and procedural expertise are fundamental to this position. Olson Craig Legal provides legal representation within its licensed framework, focusing on strategic positioning, evidence preparation, and effective advocacy aimed at securing prompt and advantageous outcomes for clients.