in the campaign “Economic Discrimination and Reconnaissance of Territories (1726–1728)”
The occupation administration of the Russian Empire levied discriminatory duties on the movement of goods of the Indigenous population: historian Ya. Z. Akhmadov quotes the customs books, stating that in 1726 "on the travel document of the Terek resident, the Okochanin Kurman Bogomatov... duties of 24 altyns in money were collected by decree"[1].