Technology is one of the major factors that has reshaped forensic science over the last few decades. What was once unimaginable has now become common place because of technology. Nowhere are these dramatic changes more evident than in forensic DNA analysis capabilities.
Prior to beginning work on this discussion, please review the following:

The articles:

Policies and Practices in Cold Cases: An Exploratory StudyLinks to an external site.
The Impact of DNA Exonerations on the Criminal Justice SystemLinks to an external site.
Cold Cases: Resources for Agencies, Resolution for FamiliesLinks to an external site.
The special report Using DNA to Solve Cold CasesLinks to an external site.

The videos:

IBIS and a Cold Case (video above)
Just Wrong: The Aftermath of Wrongful ConvictionsLinks to an external site.
Power of Forensic DNA