In 1987 DNA was first used as evidence in criminal investigations (Pitchfork and Andrews). There are now hundreds of government and private DNA laboratories in the United States, many of which do only forensic work for law enforcement agencies. The work of these forensic DNA labs is generally of two types: (1) casework on pending criminal cases and (2) classification of DNA samples taken from persons convicted of certain serious offenses.

Discuss the evolution of DNA technology being used in criminal cases from the Pitchfork and Andrews case to the present day. What changes from occurred over the past 30+ years. Identify three challenges facing many DNA laboratories today in criminal cases. What steps could/should be taken today to address these challenges?How would those steps address the problems. Please include in-text citations and references