
Eagle-eyed technical experts prove there is no such thing as a perfect crime as they assemble the pieces every criminal leaves behind. Dramatic crime re-creations and, sometimes, part of the investigations are a staple of the series. Some of the re-creations include alternate versions of the crimes, which are disproved by science. The show's episodes follow each case from the initial investigation until it reaches its legal resolution.
Woman disappears from grocery store parking lot in Boulder, Colo.; investigators find extraordinary clues in a pair of bloody gloves, unique tire tracks, and ordinary grass and pine needles.
Police suspect a gay college student's slaying is a hate crime until forensic evidence points the case in another direction.
In a wealthy area of Philadelphia, police are called to the scene of what seems like a regular accidental drowning; the investigation begins to focus on one person who has many reasons to want the victim dead.
Two women are murdered in the same town and police fear a serial killer is on the loose, further investigation finds that they were both close to the same man.