Русско-англо-русский юридический словарь

A marriage certificate is an official statement that two people are married. In most jurisdictions, a marriage certificate is issued by a government official only after the civil registration of the marriage. (Wikipedia)

Civil marriage is a marriage performed, recorded, and recognized by a government official. (Wikipedia)

The secrecy of correspondence (German: Briefgeheimnis, French: secret de la correspondance) or literally translated as secrecy of letters, is a fundamental legal principle enshrined in the constitutions of several European countries. It guarantees that the content of sealed letters is never revealed and letters in transit are not opened by government officials or any other third party. (Wikipedia)

The rule of law is the legal principle that law should govern a nation, as opposed to being governed by arbitrary decisions of individual government officials. (Wikipedia)