The main duties of these men was to supervise local Counts and to hear any complaints against them (bribery, theft, etc.) Before the Envoy's arrival, a “Letter” was sent before them announcing to all the people of the District of their intended arrival. Charlemagne was careful Not to send his Envoy's into Districts where THEY held power or interests (in case of graft).Often, Envoy's were greeted with great pomp and circumstance (greats gifts and banquets were held in their honor). By the late 800s, the system was in steady decline – owing to the deterioration of Centralized Government within the then divided Empire.