What powers of investigation do the DHS have with regards to Child Support? I received a call yesterday from DHS advising me that because my eldest daughter no longer wishes to spend any nights with me that my assessment has now increased by a further 18% as a result. I also know that her mother recently purchased a $70k+ vehicle and that she is on a declared income of a little under half of that amount. Further, I know she has a registered business. I have questions. Can DHS find answers? And how far can they go?