Written by attorneys · grounded in primary & secondary sources — see below
4 senses
1
in property and security law
A condition that a mortgage or other security device must secure a valid underlying obligation, typically a debt or promise to pay that may be existing or future. The necessity and nature of that obligation determine whether the security interest is valid and enforceable. If the obligation is void or discharged, the security device may be extinguished.
2
in criminal law
A justification for otherwise criminal conduct that the actor believes necessary to avoid a greater harm or evil. The defense is unavailable when the actor was reckless or negligent in bringing about the situation or in appraising the necessity for the conduct.
3
in property servitudes
The extent to which an easement or servitude is necessary to the claimant and the duration of a servitude created by necessity, which lasts only as long as the necessity that gave rise to it continues.
4
in civil procedure and torts
A showing required to overcome protections such as work-product immunity or to establish that a muscular contraction constitutes an act subject to tort liability. In discovery, a strong showing of need may permit access to otherwise protected materials. In torts, volition is necessary for conduct to qualify as an act.
Each sense below has its own examples, sources, and questions.
Sense 1
1
in property and security law
A condition that a mortgage or other security device must secure a valid underlying obligation, typically a debt or promise to pay that may be existing or future. The necessity and nature of that obligation determine whether the security interest is valid and enforceable. If the obligation is void or discharged, the security device may be extinguished.
Sources & Authorities· 1 primary source
Select any source to read its text and confirm it supports the definition.
Common Law
Examples1
Mortgage Without Debt
Nyah Ndlovu signed a mortgage on her warehouse in favor of Navarro Industries even though no loan or other payment obligation existed between them. When Navarro later sought to foreclose, the court examined whether any underlying debt or promise supported the mortgage. Because no valid obligation had ever been created, the mortgage was held unenforceable.
Frequently Asked1
When does a mortgage fail for lack of an underlying obligation?+
A mortgage or other security device requires a valid underlying obligation such as a debt or promise to pay. If that obligation is void or has been discharged, the mortgage itself becomes unenforceable even if the formal mortgage documents appear proper.
Supporting sources
Sense 2
2
in criminal law
A justification for otherwise criminal conduct that the actor believes necessary to avoid a greater harm or evil. The defense is unavailable when the actor was reckless or negligent in bringing about the situation or in appraising the necessity for the conduct.
Sources & Authorities· 1 primary source
Select any source to read its text and confirm it supports the definition.
Model Codes
Examples1
Reckless Creation of Emergency
Noah Nakamura deliberately drove his truck onto a flooded road to test its off-road capability, then claimed necessity when he broke into a nearby cabin to escape rising water. Prosecutors charged him with burglary. Because Nakamura had been reckless in creating the situation that forced the choice of harms, the necessity justification was unavailable.
Frequently Asked1
Does recklessness in creating an emergency bar the necessity defense?+
Yes. Under Model Penal Code § 3.02(2), the justification of necessity is unavailable in a prosecution for any offense for which recklessness or negligence suffices if the actor was reckless or negligent in bringing about the situation or in appraising the need for the conduct.
Supporting sources
Sense 3
3
in property servitudes
The extent to which an easement or servitude is necessary to the claimant and the duration of a servitude created by necessity, which lasts only as long as the necessity that gave rise to it continues.
Sources & Authorities· 2 sources
Select any source to read its text and confirm it supports the definition.
Restatements
Examples2
Easement Necessity Ends
Nolan Nunez obtained an easement by necessity across Nicole Navarro's land so he could reach his otherwise landlocked parcel. Years later a new public road was built that gave Nolan direct access. Because the original necessity no longer existed, the servitude terminated automatically.
Easement Claim Denied
Nia Nkosi sought an implied easement across Nora Nash's property, arguing it was essential for convenient access to her garage. The court weighed the extent of necessity to the claimant along with other factors and found the claimed easement was merely convenient rather than necessary. The claim therefore failed.
Frequently Asked1
How long does an easement by necessity last?+
A servitude created by necessity continues only as long as the necessity that gave rise to it persists. Once an alternative means of access becomes available, the servitude terminates automatically.
Supporting sources
Sense 4
4
in civil procedure and torts
A showing required to overcome protections such as work-product immunity or to establish that a muscular contraction constitutes an act subject to tort liability. In discovery, a strong showing of need may permit access to otherwise protected materials. In torts, volition is necessary for conduct to qualify as an act.
Sources & Authorities· 1 primary source
Select any source to read its text and confirm it supports the definition.
Cases
Restatements
Examples2
Work Product Production Ordered
National Trust sued Nimbus Cloud for breach of a data contract. National Trust sought internal memoranda prepared by Nimbus's counsel summarizing witness interviews. The court required Nimbus to produce the documents after National Trust demonstrated a substantial need and inability to obtain the information elsewhere without undue hardship.
No Volitional Act
Nexus Technologies' security guard was shoved by an intruder and his arm struck a visitor, causing injury. The visitor sued the guard for battery. Because the guard's movement was a purely reflexive reaction without any manifestation of his own will, the contact did not constitute an act for which he could be held liable.
Frequently Asked2
What showing overcomes work-product protection?+
Attorney work product prepared in anticipation of litigation is protected unless the opposing party demonstrates a substantial need for the materials and an inability to obtain their substantial equivalent by other means without undue hardship.
Supporting sources
Is a reflexive movement an act that can support tort liability?+
No. An act requires an external manifestation of the actor's will. Purely reflexive reactions such as a knee jerk or convulsive movements during an epileptic seizure are not acts of the person whose body moves.
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