Customs say wait
The main explanation for the stringent inspections is a government decree on the need for increased security measures for bridges and roads through the Kerch Strait. All vessels are subject to inspections, with special attention paid to those carrying explosive cargoes and goods of high hazard class. The inspection covers accompanying documents, holds, sealing arrangements, the cargo's technical characteristics. However, the theory does not always meet practice, and availability of the necessary documents does not guarantee a successful passage of border controls. The Customs' response is: wait.