On April 24, 2018, Joseph James de Angelo was arrested as a golden state murderer on suspicion of more than 12 murder and 50 rape cases in California state, and a serious social problem concerning individual privacy . The breakthrough of this problem occurred when comparing DNA recovered from victims and crime scenes with other DNA maps that can be searched with a free phylogenetic database called GEDmatch. This is in contrast to the DNA analysis of individuals arrested or convicted of certain crimes collected for forensic purposes in the National DNA Index System (NDIS) since 1989. Searching for illegal evidence databases for law enforcement purposes is not enough to know how generic such searches are, whether they are legitimate, and what consumers want to protect themselves and their families from police traces It is attracting public attention to the fact that I want to know if I can do it. Investigators are anxious to conduct similar investigations on GEDmatch in other circumstances, and ethical and legal investigations on such use are an urgent task.
DNA databases are currently one of the essential requirements for legal problems in most criminal cases in most countries. Forensic agencies use this database to support police current and future criminal investigations, seek legislative approval, financial support and justice approval. The true advantage of a database depends on its scope of use and to what extent the operational policing strategy responds to the intelligence opportunities it provides. In some countries like the UK, it is very necessary to include them and expand their information as they contribute to criminal investigation and prosecution. Many studies have confirmed that DNA evidence is rarely important in clinical trials. The main value of DNA analysis is in the early stages of the experiment. It is a powerful investigation tool to eliminate suspicious criminals
DNA testing is a very useful tool for family historians. The DNA itself is not that useful, but it is really powerful when compared with a large genetic lineage database or when used in conjunction with on-line pedigree information sources and social media sites. Individuals conceived by adopted children, abandoned children, and donors can now find their genetic or biological identity through DNA testing. If you match your second cousin, share the same grandparents. Using standard pedigree research method, this is a question going back to all the lines today to determine the right candidate to appear in the right place at the right time. In some cases, people will play with their parents and brothers and sisters in the first test. Every day, there is a thrilling DNA success story, the brick wall of the family tree is collapsed. Genetic strains now correct ethical violations of previous generations