National DNA database
（重定向自Genetic Database）
A national DNA database is a government database of DNA profiles which can be used by law enforcement agencies to identify suspects of crimes.
DNA technology has proved to be a valuable investigative tool which has helped to exonerate the innocent and to bring those responsible for serious crimes to justice. The legislation that Parliament enacted to govern the use of this technology within the criminal justice system has been found by Canadian courts to be respectful of the constitutional and privacy rights of suspects, and of persons found guilty of designated offences.