(1) Increased likelihood of finding assailants in criminal offences, especially violent and sexual assaults.
(2) Chance to solve old unsolved crimes.
(3) Biological fathers (and mothers) identified with very high probability leads to solutions in wide range of family problems.
(4) Identification of victims in mass terrorist attacks, aircraft accidents etc.
(5) Familial searching and analysis increases opportunities of criminal detection.
(1) Seen as an infringement of civil liberties especially when DNA profiles are stored from people who have nothing to do with a particular criminal offence.
(2) Concerns that the finding of trace amounts of DNA can falsely implicate a person in a criminal investigation.
(3) Concerns that the complexity of testing and data storage means errors could occur.
(4) DNA profiles could be related (eventually) to certain illnesses and charcter traits and this information would be used by insurance companies and other organisations to the disadvatgae of the individual.