Where a person who is permanently or temporarily insane makes a declaration, the intention corresponding to that declaration is deemed to be lacking if the impairment of his mental capacities prevented a reasonable appraisal of the interests involved or if the declaration was made under influence of that impairment.
Civil Code
2015 English source edition · Current applicability not established.
This is the 2015 English-language edition attributed in its front matter to the Ministry of Justice. Eri Atlas has not independently verified the translation, later changes, or whether the text is currently in force. Nine passages are incomplete in the available scan and are identified where they occur.
Article 317
Mental Impairment · Preserved transcription; page attribution imported from the source collection. Verify against the original.
A declaration is presumed to have been made under the influence of the impairment, if the juridical act was prejudicial to the insane person, unless the prejudice was not reasonably foreseeable at the time of the juridical act.