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David Gavitt served almost 27 years in prison before new arson investigation science exonerated him, but countless others remain behind bars; the science behind crime scene investigations moves forward, but legal precedent only looks backward.

CSI on Trial

Arson Investigation

The shoe print at the grisly Idaho crime scene seemed to match Charles Fain's shoe whenboth showed a small nail hole in the sole; based on that physical evidence, he was convicted and sentenced to death.

Footwear Analysis

Suburban mom Audrey Edmunds was convicted of shaking a neighbor's baby to death, but she was freed after 11 years when the pathologist who testified against her admitted he was no longer sure about shaken baby syndrome.

Shaken Baby Syndrome

Firearms Analysis, one of the most common forensic science practices in the US, faces fresh challenges over the science it relies on; the national battle over whether to allow firearms analysis evidence in court comes with real consequences.

Firearm Examination

After 33 years in prison, DNA testing exonerates Keith Harward and proved the faultiness of the bite evidence; the bitemark analysis field hosts intense in-fighting and government investigations.

Bitemark Analysis

Based on expert testimony from bloodstain pattern analysts, a jury convicted former state trooper David Camm of killing his family; he was exonerated years later when a new piece of evidence came to light.

Blood Pattern Analysis

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Host Molly Hermann reveals the lack of science behind some of the most well-known crime scene investigation tools, and tells the stories of the wrongfully convicted who went to prison for years.

S1 E3 | Firearm Examination