NON DEFICIT JUS SED PROBATIO

non deficit jus sed probatio (non def-<<schwa>>-sit j<<schwa>>st sed proh-bay-shee-oh). [Latin] Scots law. The right is not lacking, but the proof of it. • The phrase appeared in reference to the principle that many rights, both disputed and sometimes undisputed, require a special mode of proof, such as a written document.

[Blacks Law 8th]