A person with a qualifying interest in an unregistered estate may lodge a caution against first registration (section 15), which obliges the registrar to notify the cautioner of any application for first registration and gives the cautioner the right to object (section 16); cautions may be withdrawn or cancelled on application by the estate owner (sections 17, 18) and are entered in the cautions register (section 19). The registered proprietor may not lodge a caution in respect of his own estate (section 15(3)). Sections 20 to 22 allow alteration of the cautions register by the court or registrar.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.