It seems that DNA evidence is being questioned around the world. A very reputable university in Australia has started a campaign to free "wrongly convicted" criminals.
http://www.abc.net.au/news/stories/2009/12/21/2777679.htm?section=justin
So is DNA evidence reliable, or subject to challenges like this?
http://www.abc.net.au/news/stories/2009/12/21/2777679.htm?section=justin
Griffith University Innocence Project is committed to freeing innocent persons who have been wrongly convicted. By working to correct failures in our criminal justice system, the Project will foster an Australian legal culture that champions the defence of the innocent, and protects the marginalised and oppressed
So is DNA evidence reliable, or subject to challenges like this?