According to reports from the Migration Agency, these informal courier tasks sometimes involve delivering orders that contain narcotics or other banned substances (known as 'drop-off'), resulting in detentions by police officers and subsequent criminal charges.

The agency strongly advised against participating in informal courier services, especially those offering large sums of money for suspicious deliveries. Uzbeks are urged to thoroughly check the content of the products before transportation.

Under Russian law, trafficking or distributing narcotic substances can result in severe long-term imprisonment.