Вы искали: 法律不溯既往原则 (Китайский (упрощенный) - Английский)

- 法律不溯既往原则；
- the principle of non-retroactivity of laws;

(m) 确保各国关于按刑事罪论处恐怖行为的法律便于查阅、措词精确、不歧视和不溯既往，并且符合国际法，包括人权法；
(m) to ensure that their laws criminalizing acts of terrorism are accessible, formulated with precision, non-discriminatory, non-retroactive and in accordance with international law, including human rights law;