Quick answer

Laches is the failure or neglect, for an unreasonable and unexplained length of time, to do that which by exercising due diligence could or should have been done earlier; it is negligence or omission to assert a right within a reasonable time, warranting a presumption that the party has abandoned it or declined to assert it. Laches is an equitable defense with four elements: conduct by the defendant giving rise to the situation complained of; delay by the plaintiff in asserting their right despite knowledge or notice; lack of knowledge by the defendant that the plaintiff would assert the right; and injury or prejudice to the defendant if relief is granted to the plaintiff. Laches differs from prescription: prescription is a matter of statutory time limits (fixed periods), while laches is not about the mere passage of a fixed time but about the inequity of allowing a stale claim due to the plaintiff's unreasonable delay and the resulting prejudice. Because of this, a claim may still be barred by laches even if the prescriptive period has not technically expired. In property disputes, laches is often invoked against those who assert ownership after decades of inaction while others possessed and improved the land.

What Laches Is

Laches is the unreasonable, unexplained delay in asserting a right, warranting a presumption that the party has abandoned or declined to assert it.

The Four Elements

Laches vs. Prescription

Prescription is a matter of fixed statutory periods. Laches is about the inequity of a stale claim due to unreasonable delay and prejudice — so a claim may be barred by laches even if the prescriptive period has not expired.

Practical Takeaways

Frequently Asked Questions

What is laches? The failure or neglect, for an unreasonable and unexplained length of time, to assert a right, warranting a presumption that the party has abandoned or declined to assert it. It is an equitable defense.

How is laches different from prescription? Prescription is a matter of fixed statutory time limits, while laches is about the inequity of allowing a stale claim due to unreasonable delay and prejudice, not the mere passage of a fixed period.

Can laches bar a claim that hasn't prescribed? Yes. Because laches is based on unreasonable delay and prejudice rather than a fixed period, a claim may be barred by laches even if the prescriptive period has not technically expired.

What are the elements of laches? Conduct by the defendant giving rise to the situation, delay by the plaintiff despite knowledge, lack of knowledge by the defendant that the right would be asserted, and injury or prejudice to the defendant if relief is granted.

This commentary is for general informational purposes only and does not constitute legal advice. For guidance specific to your situation, please consult a licensed attorney.

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