" Ground 1 … Although it is conceded there is no definition of the term 'descendant' for the purposes of the Regulations; it is submitted that in cases involved alleged de facto adoptions an Immigration Judge, taking the purposive approach, should perform a rigorously thorough examination of parental responsibility and dependency. It is submitted that the Immigration Judge has used the wrong test at paragraph 25. Even accepting that the appellants have been 'mainly dependent on him financially' does not give rise to a finding a de facto adoption exists. It is submitted that for a de facto adoption claim to be made out, complete or whole dependence should be shown, along with vested responsibility that must not have been delegated for a substantial period prior to the application. Although strictly speaking the Immigration Rules are not applicable in this case, it is respectfully submitted they can usefully be referred to for guidance in cases such as these. Paragraph 309A(a) makes clear that a de facto adoption can only exist where the adoptive parent has lived with and taken care of the child. The sponsor in this case has not. Ground 2 In the alternative, it is submitted that theImmigration (European Economic Area) Regulations 2000 do not recognise de facto adoptions, and in fact recognise only blood ties. 'Descendants' should be given its natural meaning. It is submitted that a 'descendant' is one connected to another by a direct vertical blood line. It is submitted that the only exception to this rule within the Regulations must be an official adoption which, in any event, is the legal mechanism for creating a relationship akin to blood ties. Accepting de facto adoptions are not recognised under the Regulations, it is submitted de facto adoptions can only be considered under provisions of HC 395, and not under the Regulations."