Before DNA testing, prosecutors relied on less sophisticated forensic techniques, including microscopic hair analysis, to put criminals behind bars. But how reliable was hair analysis?

Produced by: Retro Report

Click here to follow us: vimeo.com/newyorktimes
Watch more videos at: nytimes.com/video
Follow on Twitter: twitter.com/nytvideo

Loading more stuff…

Hmm…it looks like things are taking a while to load. Try again?

Loading videos…