Historical legal archive · Mullowney's Law

What is Negligence?

A plain-language overview of negligence as a civil-law concept, including duty, standard of care, breach, causation, evidence and loss.

What is Negligence? — legal insight
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Historical legal archive

This article has been preserved from the firm's earlier public archive. It is general historical information and does not indicate that Mullowney's Law currently offers every service discussed here.

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This article is preserved from Mullowney's Law's earlier public archive. It provides historical general legal information on the topic and should not be treated as current advice for a specific matter.

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Negligence is a context-specific civil-law concept

Negligence is a legal concept used in a range of civil disputes. At a high level, the analysis asks whether a person or organization was required to meet a legal standard of care, whether that standard was breached, and whether the breach caused legally recognized loss. The exact test and the evidence required depend on the relationship between the parties and the circumstances of the case.

Duty and the applicable standard of care

A negligence analysis usually begins with the nature of the relationship and the obligation the law places on the defendant. The standard is not simply whether someone made a mistake. The question is whether the conduct fell below the standard the law required in the particular circumstances.

Causation and loss still have to be established

Showing a breach of a standard is only part of the analysis. A claimant must also connect the alleged breach to the loss being claimed. Civil cases can become factually difficult where several events, decisions or pre-existing circumstances may have contributed to the result.

Documents and evidence matter

Contemporaneous records, contracts, correspondence, policies, professional records, photographs and witness evidence can all affect how a negligence issue is assessed. The useful evidence depends on the type of dispute. A clear chronology often helps identify what was known, what happened next and which facts remain contested.

Because negligence is highly dependent on context, a general definition cannot determine whether a particular claim is viable. Legal analysis should identify the relevant duty, the applicable standard, the evidence of breach, causation, loss and any procedural or limitation issues that may affect the matter.

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Written by

J.L. Lee Mullowney

Founder of Mullowney's Law Professional Corporation in Ottawa. The firm's current focus includes estate litigation, probate-related disputes and contract disputes.

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