When the reason of the law ceases, the law itself does not cease, but its enforcement may.

Explanation

A law remains on the books even when circumstances change — but its practical enforcement depends on the continued existence of the conditions that gave rise to it.

Where this applies

• The original reason for the law no longer exists, but the law is still on the books.
• Circumstances have changed and the law doesn't serve its original purpose anymore — should it still be enforced?

See also

• 8.9.3 The effect of law consists in its execution.