The book is a collection of translations from Arabic, Turkic and Caucasian languages ​ ​ of the most important monuments of customary law of the Northeast Caucasus of the 5th-20th centuries. The first volume includes treaties and regulations from the early Middle Ages to the New Age, preserved in epigraphy, chronicles and memorable records from Dagestan. Among them are the canons of the king of Caucasian Albania, The will of Andunik, the agreement and bailiffs of the 17th-10th centuries communities and confederations of the highlanders Gidatl, Andalal, etc.