'Yancin gaskiya shine hakki, dangane da mummunan take hakkin dan adam, ga wadanda abin ya shafa da danginsu ko al'ummominsu domin samun gaskiyar abinda ya faru. Hakkin gaskiya yana da kusanci da shi, to amma ya bambanta da, wajibin jihar na yin bincike da kuma hukunta manyan take hakkin dan adam. 'Yancin gaskiya wani nau'i ne na haƙƙin waɗanda aka zalunta ; ya dace musamman da yin canjin yanayi game da cin zarafin ɗan adam a baya da aka rinka damu . A shekara ta 2006, Yasmin Naqvi ta kammala da cewa haƙƙin gaskiya "yana tsaye a wani wuri a ƙofar ƙa'idar ƙa'idar doka da kuma kayan magana - a wani wuri sama da kyakkyawar hujja kuma a wani wuri a ƙasan ƙa'idar doka". Tunanin haƙƙin shari'a bisa gaskiya ya bambanta da fahimtar da ta gabata game da mahimmancin kafa gaskiya game da abin da ya faru a cikin batun take haƙƙin ɗan Adam. A cikin 1977, Yarjejeniyar I zuwa Yarjejeniyar Geneva ta sanya haƙƙin dangin mutanen da aka kashe a cikin rikice-rikicen makamai domij ganin asalin abinda ya faru.