Over the last few decades, a major trend in forensic science has been the rise of doubts about previously rock-solid methods, raising serious concerns about the justice system's ability to protect the innocent and punish the guilty.

A&E True Crime looks at some high-profile cases where crime-scene glitches may or may not have tipped the scales of justice.

Join Brooke Gittings from the hit podcast, Convicted, as she takes a deeper dive into the Cold Case Files episode, "A Family Cursed," in the latest installment of Cold Case Files: The Podcast.

Join Brooke Gittings from the hit podcast, Convicted, as she takes a deeper dive into the Cold Case Files episode, "A Killer Slips Away," in the latest installment of Cold Case Files: The Podcast.

Join Brooke Gittings from the hit podcast, Convicted, as she takes a deeper dive into the Cold Case Files episode, "A Family Secret," in the latest installment of Cold Case Files: The Podcast.

Join Brooke Gittings from the hit podcast, Convicted, as she takes a deeper dive into the Cold Case Files episode, "Circle of Friends," in the latest installment of Cold Case Files: The Podcast.

Join Brooke Gittings from the hit podcast, Convicted, as she takes a deeper dive into the Cold Case Files episode, "Officer Down," in the latest installment of Cold Case Files: The Podcast.

Join Brooke Gittings from the hit podcast, Convicted, as she takes a deeper dive into the Cold Case Files episode, "The Night Shift," in the latest installment of Cold Case Files: The Podcast.

We've all heard that one big sign someone is lying is if they can't look you in the eye. How much truth is there to that? Apparently, none.

Join Brooke Gittings from the hit podcast, Convicted, as she takes a deeper dive into the Cold Case Files episode, "Killings on Christmas Eve," in the latest installment of Cold Case Files: The Podcast.