The Customs Service's enforcement duties include monitoring the movement of goods into, through and out of the EU with respect to customs law, border police work, general police work in road traffic, protection of the German continental shelf in the North Sea and the Baltic Sea (more precisely, monitoring of underwater mining and exploration rights), as well as the fight against illicit work and money laundering. The Maritime Customs Service together with other agencies makes up the German Federal Coast Guard. The enforcement elements of the Customs Service in many areas cooperate strongly with the police forces of the German states and the federal police.