Name: Scratching the Surface
Genre: Comedy
Duration: 25 min

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Authorities are able to apprehend a kidnapper because he allowed his victim to write a will on a telltale pad of paper.

Forensic Files

Last Will

Time of death becomes pivotal when a pregnant woman is found murdered in her air-conditioned bedroom.

Dinner and a Movie

A woman wins her release after being imprisoned for allegedly killing her mother in a car fire.

Plastic Fire

Police in St. Petersburg, Fla., use cell phone mapping, wiretapping and a host of forensic evidence to find a surgeon's killer.

House Call

When a nurse starts experiencing a variety of flu-like symptoms, she discovers that she is HIV-positive; she learns that her infection was not accidental.

Shot of Vengeance

Technology able to analyze human bite-marks yields information on a woman's death.

Once Bitten

Computers aid the police and FBI in solving a string of crimes.

X Marks the Spot

A bite mark is all the evidence needed to convict a suspect who was robbing tourists in Florida.

Tourist Trap

A death in Pennsylvania is strikingly similar to one in North Carolina.

All Wet

Investigating the worst arson spree in U.S. history -- a rash of more than 75 fires near Seattle.

Fire Proof

Forensic scientists try to find a way to "lift" the serial number from a shotgun that's their only clue in a case.

Scratching the Surface

Discovering that an assault suspect is left-handed is crucial to a police investigation dating back 16 years.

Sleight of Hand

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Retracing the steps of real investigations with interviews and dramatic re-creations as experts draw on forensic science to solve baffling crimes and other mysteries.

S7 E40 | Scratching the Surface