Crime Solving & Forensics

When Donald Smith's DNA is found at a crime scene, police think they solved the case. To their surprise, the DNA also matches someone else.

Three men in Queens were so inspired by the heist from the movie "The Town," that they decided to re-enect the scene almost shot-for-shot...

After a murderer forces his victim to write a farewell letter to her family, a hidden clue in the note untangles the largest manhunt in S...

101 fugitives arrive at a free pre-game brunch and find an unexpected surprise waiting to greet them.

Adolph Leutgert owns and operates a sausage empire in Chicago. When his wife goes missing police discover her remains in a gruesome place...

A house fire causes nearly half a million dollars in damage under suspicious circumstances, but investigators struggle to prove their ars...

When two girls become close friends, classmates can't help but notice how similar they look. A DNA test reveals that the girls are actual...

Police use brand new technology to turn an unknown DNA profile into a police sketch.

Faced with dozens of cold cases, investigators print unsolved crimes on playing cards and distribute them to prison inmates. When a priso...

When a police precinct becomes a Pokemon Go gym, one unobservant criminal unintentionally turns himself in.

When a man is unable to cash his last social security check, his friends hatch a bizarre plan that involves a dead body, an office chair,...

When a woman and her two daughters are brutally murdered, police use an unconventional tactic to bring in leads.

A car is pulled over for drunk driving. The occupants flee the scene, but quick-thinking cops use an unexpected method to track them down.

After a woman goes missing, investigators can’t find the body or even a crime scene, so they enlist a NASA rover to crack the case.

Belgian police take down a Somali pirate kingpin in a sting that is stranger than fiction.

For the first time ever, investigators use tree DNA to place a killer at the scene of a crime.

Police encounter a bizarre crime scene when they find a man stabbed to death in his home and his pet bird dead beside him. Investigators ...

When several Amish families report the same story, a local officer uses out-of-the-box thinking to find their perpetrator.

When Miami Detectives need fingerprints analyzed, they turn to Latent Print Examiner Rupert Butcher.

Cleveland Det. Kathleen Carlin asks the Ballistics Unit to test fire a gun to see if it was the gun used in her murder.

Tulsa homicide detectives Jason White and Ronnie Leatherman talk about their work undercover in this bonus scene from "Bloody Valentine/S...

Senior forensic scientist Joy Patterson does a ballistics test on a possible murder weapon to assist Cpl. Nathan Schilling with a case in...

After a suspect is found with a firearm, Marc Boudreau of the New Orleans Crime Lab, must preform several ballistics tests to determine i...

"Dep Chief Larson talks about the collaboration between the Homicide Team and Tulsa's SVU in finding the suspect in Amy Robinson's murder...

Investigator Jennings Kilgore performs a ballistics test on a gun and shows us how much goes into evaluating the bullet's markings in thi...

Sgt. Lejon explains the sequence of events that occurs when a S.W.A.T. team moves to arrest a suspect in this scene from "Their Worst Day."

The partying scene in New Orleans presents interesting challenges for the city's EMS Sprint Unit in this web exclusive from "The Darkest ...

The "Nightwatch" EMTs explain what you should know about their challenging but rewarding jobs in this web exclusive.

Senior Inspector Mike Romani and USMS Chief Psychologist Dr. Michael Bourke discuss the psychological traits of sex offenders and the uni...

Det. Klein sits down to discuss what his investigating style is in this bonus clip from Season 1, Episode 2, "The Dark Staircase."

Det. Lowe sits down to discuss why he joined the Homicide Unit and what keeps him going in this bonus clip from Season 1, Episode 5, "Hot...

Det. Thorpe talks about how the Homicide Unit works together in this bonus clip from Season 1, Episode 6, "The Cooler."

Crime 360 video: Dr. Curt Jones shows us how the S.E.M. can identify the smallest particle left at the scene of the crime.

Investigators use facial recognition technology to locate potential affiliates of the murder suspect in this clip from "Officer Down."

Witnesses work with a police sketch artists to identify the suspect. Unimpressed with the sketch artist's interpretation of their descrip...

Crime 360 video: Jessica Klein gives us an in depth look at how Superglue can be a detective's best friend.

Investigators collaborate with an independent investigator and scour social media for tips in this clip from "Circle of Friends."

In a Crime 360 Forensic Tools video, Jessica Kline of Richmond Forensics explains the types of dogs that her team utilizes and Officer Ja...

In a Crime 360 video, Forensic Tools, Detective Rashaan Wigfall collects DNA from a suspect's keys and explains how blood isn't the only ...

Investigators test fire several shotguns and compare the bullet spray in order to determine the murder weapon in this clip from "Officer ...

Using new technology, an investigator is able to isolate a single finger print on a 25-year-old jar of mayonnaise in this clip from "A Ki...

Investigators use web search history to crack a murder case in this clip from Killer Cases, "Murder in the Barnyard."

Officers test shotguns to try to match the barrel of the murder weapon in this bonus clip from "Officer Down."

In this clip from The First 48: Homicide Squad Atlanta, Maj. Lee discusses how social media helps investigations (Season 1, Episode 3).

After a series of murders of homeless people in Las Vegas had cops stumped, they came up with an ingenious plan.

Years after the murder of an LA man goes cold, cops find all the evidence they need inked on a gang member’s chest.

Police organized a sting of D.C.'s black market that involved a fake rap label, an undercover music mogul, and over $7 million in drugs.

Investigators comb through evidence in a clip from Cold Case Files, "A Killer Slips Away."

In a Crime 360 video, Joe Keiper discusses corpse-eating insects.

New evidence cracks open a 39-year-old cold case in this clip from Killer Cases, Season 1, Episode 7, Murder at the Mall.

When a woman is murdered in her mobile home, police uncover shocking discoveries in this clip from Season 5, Episode 23 of Cold Case Files.

An officer who inspects a woman's car compromises fingerprint evidence, in this clip from Cold Case Files, "A Family Secret."

Investigators use laser mapping technology to map the crime scene and determine where the killer was standing during the crime.

In a Crime 360 video, Forensic Tools, Jessica Kline of Richmond Forensics explains that the Leica System freezes the crime scene in time.

A man thought he'd get away with murder, but cops were able to bring him down with the help of an unlikely ally—a grasshopper.

When a woman is killed during what appears to be a random home invasion, police use the victim’s fitness tracker to identify a suspect.

Video from the crime scene made certain details of the case clear to detectives in this bonus clip from "The Night Shift."

Officer Edgar and K9 Vader demonstrate how they sniff out narcotics and other scents in this clip from "America's Top Dog."

Police dog handlers from Team Mattis, Team Fuze & Team Riddick, discuss the strong bond and trust they have with their partners in crime...

Police dog handlers from Team Murphy, Team Blitz, Team Skoot, Team Demi, & Team Minion discuss the strong bond and trust they have with t...

Police dog handlers from Team Bonito, Team Kato, Team Duke & Team Bear discuss the strong bond and trust they have with their partners in...

Police dog handlers from Team Capo, Team Rico, Team Django, & Team Tango discuss the strong bond and trust they have with their partners ...

A man in Modesto was apprehended by a K9 unit after fleeing from police in this clip from Season 2, Episode 1.

It took 20 years and breakthrough technology to finally solve Carol's murder, in this clip from Season 1, Episode 5.

A shocking murder, a nameless victim, and a 13-year search for the truth. Watch the story unfold in this clip from Season 1, Episode 6.

It took nearly a decade for investigators to uncover the crucial connection that led to an arrest in the death of bookstore owner Sherry ...

Det. Chase Calhoun visits a gun range to test whether or not the victim's injuries could be the result of her shooting herself.