Are you saying that those people have only rented temporarily and have now returned to their permanent home? Are these the people you are telling on? How long did they rent for before going back to their permanent home? How is it that you learn about this information: are you waiting to see when these people move (either back to their permanent home or simply to a new property outside of catchment) or these people simply tell what their plans were or going to be?I also think if you know of people who are renting to get a place you should tell the council. We told them of people we know who have done this and are waiting it see if they lose their place. The council claims if you obtain a place fraudulently that it will be removed.