Could also be child support. Had an engineer that could not get off the boat for about 5 months due to alimony/child support in arrears. They started with his passport because it expired before his license. Then the license was refused renewal. He was SOL after that. He was a relief and don’t know all the particulars. Port captain hired him without checking passport had already expired Captain only realized when we got ready to go through customs for New Guinea. Not a bad port to miss actually what a shithole.