Some are sponsored by DNA testing companies such as Family Tree DNA. The technique is known as familial DNA testing and it has raised ethical issues in the forensics community. Police can identify likely relatives of the person who may have committed the crime by comparing the DNA in other databases with DNA evidence in law enforcement databases. (Shannon Stapleton/Reuters)Critics say that familial DNA testing allows for searches of innocent people who happen to be related to someone suspected of committing a crime or otherwise provided their DNA for inclusion in a database. Law enforcement officials have argued the technique can provide investigators with valuable leads.

Source: CBC News April 27, 2018 12:53 UTC