jury nullification

Noun

 * 1)  An acquittal by a jury of a defendant ignoring the facts of the case and/or the law.
 * The prosecutor thought he lost the case, not due to the creation of reasonable doubt, but due to jury nullification.

Translations

 * Finnish: lautamiehistön hylkäävä päätös
 * Russian: нуллифици́рующий верди́кт суда́ прися́жных