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date: 12 February 2025

Falsus in uno, falsus in omnibus  fal´sūs ēn ū´nō fal´sūs ēn ōm´nēbūs .  fal´sus in ū´nō, fal´sus in am´nibus . 

Source:
Guide to Latin in International Law
Author(s):

Aaron X. Fellmeth,

Maurice Horwitz

“Deceitful in one, deceitful in all.”A maxim meaning that, when one has perjured himself once, his entire testimony and all of his or claims thereby are presumed false or at least fall under suspicion of deceit.... ...

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