ICAEW: HMRC’s High Net Worth Unit (HNWU) was set up in 2009 and guidance was issued at the time. Since then HMRC has developed specialist teams in the HNWU, which aim to give the unit a better understanding of different customers.
Full story: http://www.ion.icaew.com/TaxFaculty/post/High-net-worth-unit-is-five-years-old?