New laws came into force in January that allow the Home Office to use X-rays of wrists and teeth, and MRI scans of thighs and collarbones to establish whether a migrant is under the age of 16.New laws came into force in January that allow the Home Office to use X-rays of wrists and teeth, and MRI scans of thighs and collarbones to establish whether a migrant is under the age of 16.Read MoreHealth News | Mail Online