UK Child Support Agency extensively uses DNA testing for establishing who the biological parent of the child is for purposes of providing child maintenance and support. Child support is one the main areas of non-criminal DNA testing.
Child adoption is another area where a DNA test for paternity is widely applied. Currently, UK adoption agencies adopt children into families which match their ethnic background. Sometimes, it is difficult to determine the ethical background of the child and here DNA testing can help. People of different races and ethnic groups have common facial and other features which are typical for this particular race or group. The same is also true for their genetic characteristics. Various racial and ethnic groups have genetic markers specific to these groups. When analysing these markers, it is possible to tell the proportion of individual’s ancestors who came from specific ethnic groups. It is, however, impossible to pinpoint at what stage the particular ancestors contributed their DNA and also their number. For example, the results of ethnicity DNA testing can show that an individual has 20% of markers specific to northern Europe, 50% to the Middle East, 10% to the Mediterranean and 20% to sub-Saharan Africa. Using this information the family with the closest ethnicity to the child can be chosen.
Since its discovery 20 years ago, the use of DNA for human identity and relationship testing has emerged as a powerful tool in both civil and criminal justice systems. DNA testing can reveal whether two or more individuals are related as well as determining the nature of their relationship. Today, it is possible to identify people by a single hair, as well as obtain information about their gender and ethnic background, and, within the next couple of years, identify their age.
Before the advent of DNA testing, human identity testing was largely carried out through blood typing. DNA analysis has now superseded blood testing and is the most accurate method currently available for human identification.