Lands department s land control and lease enforcement work in the new territories are mainly undertaken by officers of the land executive and land inspector grades . similar duties in the urban area are mainly undertaken by the estate officer grade 地政总署的土地管制和执行契约条款工作,在新界主要由地政主任及地政督察职系负责,在市区的有关工作主要由产业主任职系负责。