n Islamic law, an act is considered a crime if it is proven by juridical
evidences. An act is not considered a crime unless there is punishment for it.
Therefore, every juridical decision adheres to the principle of legality that
limits the extent of a law just for the future, not retroactive. According to
most Muslim scholars, the principle of retroactiveness could be implemented
if a new law is more just and humane without breaking the attainment of
law ends. Implementation of the principle for severe violence against human
rights is not allowed because it does not meet such requirement.Keywords: Asas Retroaktif, Asas Legalitas, Hak Asasi Manusia,
Jarîmah, Uqûbah.