The Surprising Perils of Human Identification

This is one of the best essays ever written on the logical and practical weaknesses of several methods of human identification -- and of methods of identification in general:
Erroll Morris What's in a Name? (Part 2) NYTimes (May 1, 2012)

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The dynamic evidence page
Evidence marshaling software MarshalPlan
It's here: the law of evidence on Spindle Law.

See also this post and this post.