Laws in Peru are issued by the Legislative branch, although the Executive can issues norms of the same rank than laws if it is granted that power by the Legislature in limited circumstances.
Peru has a tradition as a civil law country. Its legal system relies in written laws. However, when Courts decide that the resolution of a certain case discussed before the Constitutional Court or the Supreme Court is considered a precedent, all powers must observe that particular ruling as mandatory.
The Executive branch is in charge of negotiating and concluding treaties on behalf of the Peruvian government. Human rights treaties have the same rank as the Peruvian Constitution. Other treaties have the same rank than laws issued by Peruvian Congress.
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