Sibling tests can help to determine whether two people are Full or Half siblings. If two people have the same father and mother they are full siblings. If however two people share only one parent, be it either a mother or father they are half siblings. This type of test is usually performed when the parents of an individual are unable to provide a DNA samples and will scientifically determine the genetic relationship between the alleged siblings. Please contact our office if you wish to organise a sibling DNA test.