The law of necessity is the law of time — that is, of the present instant.

Explanation

Necessity justifies only what the immediate moment demands — once the emergency passes, the ordinary law resumes. No permanent rule can be built on temporary necessity.

Where this applies

• Emergency powers are invoked and someone asks how long they last.
• A temporary necessity is used to justify a permanent change in law.

See also

• 1.7.8 Necessity makes lawful what is otherwise not lawful.
• 12.6.1 Necessity has no law.