ACV Ashmore Guardian
The Niugini Guardian is a patrol vessel operated by Papua New Guinea and previously operated as the ACV "Ashmore Guardian" by the Customs Marine Unit of the Australian Customs and Border Protection Service. The former fishing supply vessel "Roper K" was converted in 2007-08 by Jurong SML in Singapore. It was leased to Customs, primarily to patrol the Ashmore and Cartier Islands for up to 330 days per year.