It is the insignificant details that forensic experts use to recreate a crime and catch a killer - fibres from a carpet, a lost eyelash or a clothing fragment. S2/Ep3
A man risks everything to find his sister's killer - can a sympathetic detective with a great theory help him? Plus, a sexual predator is getting away with murder. S6/Ep10
See how plants help provide oxygen and nutrients, but in a criminal investigation, they can also mark the time and location of a person's death. S2/Ep4
A security guard finds an employee dead in the driver's seat of his car. Police suspect that someone was illegally hunting and shot the victim. S8/Ep12
Explores three murder cases in which investigators secured convictions from trace evidence, including fingerprinting, fibre analysis and DNA testing. S4/Ep3
When a ten-year-old vanishes, investigators must rely on forensics to fill in the blanks and track the missing child. Can they piece together the evidence in time? S8/Ep13
No matter how clean a crime scene appears to be, the culprit often leaves something behind. Even a fingerprint or shoe tread can lead to a conviction. S3/Ep3
Find out how blood can be the most telling evidence of a murder, and is often the only thing investigators have to link a killer to his victim. S8/Ep15
Hiding a body can be tricky - it's sometimes easier to obscure the circumstances of death, turning murder into suicide or blaming it on someone else. S3/Ep4
Is the rapist and serial killer known as the Hillside Strangler working alone? Plus, a murderer is stalking California's parks; can detectives stop him killing again? S3/Ep6
Poisoners: devious killers relying on their victim's trust in order to steal their lives. Find out why they don't usually stop at just one kill. S3/Ep9
Just a few microscopic cells, from even a single hair or drop of blood, can place a murderer behind bars. What does DNA mean for crime solving today? S1/Ep6
From personality profiles to DNA testing and fibre analysis, look at how the latest technology in forensic science helps criminologists solve a case. S8/Ep8
A trucker disappears - police search extensively only to find what they feared in their own backyard. And two sudden deaths are not as coincidental as they appear. S8/Ep7
From microscopic DNA to ballistics and tiny fibres, find out how cutting edge technology and forensic science is used to bring killers to justice. S8/Ep6
Firefighters are called to a home in the middle of the night to find a fire raging out of control but a mystery woman's charred body is discovered. S8/Ep5
The OJ Simpson murder trial captured the attention of the nation. Find out what forensics could and couldn't tell us about the trial of the century. S1/Ep15
Fingerprints are an indisputable, time-tested method of establishing someone's ID. New computerisation means identification can now take only minutes. S1/Ep12
Most victims of multiple murderers have a link with the killer or match their set of criteria. But some murders occur when victims appear to be picked at random. S7/Ep92
In Florida, a killer admits murder but no one can find his victim; and in Virginia, police have a decomposed body, but no suspect. Can forensics crack these cases? S1/Ep3
Sometimes, when a death seems to be accidental, it is up to forensic scientists to reveal hidden betrayals that reclassify cases from accidents to homicides. S7/Ep90
A victim's estranged spouse is often a key witness in a murder investigation, and when the body is found, family and friends can provide crucial information. S7/Ep89
How advances in technology can expose a murderous liar, such as the man who staged his wife's suicide to cash in a $100,000 life insurance policy. S5/Ep1
A woman, Betty, identifies a dead body as her missing sister Annie - but Annie is still alive. A look at murderers who kill to acquire a new identity. S6/Ep4
Discover how scientists can search beneath water for proof of homicide, with cases including a woman found floating in a pond tied to a car jack. S5/Ep12
Discover how scientists can search beneath water for proof of homicide, with cases including a woman found floating in a pond tied to a car jack. S5/Ep12
The naked body of a Swedish man is found, a father and son are accused of killing a woman and a police officer impostor disposes of her love rival. S5/Ep5
How a simple clue such as dirt on shoes can place a suspect at a crime scene. Meticulous forensic investigators follow the trails of evidence leading to killers. S5/Ep2
Three cases illustrating the extreme measures investigators take to catch a killer when a missing person is presumed dead but no body can be found. S4/Ep6
Features investigations in which natural clues, including insect bites, cat hair and a rare form of bacteria helped forensic scientists solve murders. S4/Ep4
Explores three murder cases in which investigators secured convictions from trace evidence, including fingerprinting, fibre analysis and DNA testing. S4/Ep3
Poisoners: devious killers relying on their victim's trust in order to steal their lives. Find out why they don't usually stop at just one kill. S3/Ep9
No matter how clean a crime scene appears to be, the culprit often leaves something behind. Even a fingerprint or shoe tread can lead to a conviction. S3/Ep3
Learn the ways that investigators are always on the cutting edge of new forensic techniques, helping them solve cases and catch criminals more swiftly. S2/Ep8
Learn the ways that investigators are always on the cutting edge of new forensic techniques, helping them solve cases and catch criminals more swiftly. S2/Ep8
The OJ Simpson murder trial captured the attention of the nation. Find out what forensics could and couldn't tell us about the trial of the century. S1/Ep15
Fingerprints are an indisputable, time-tested method of establishing someone's ID. New computerisation means identification can now take only minutes. S1/Ep12
The occurrence of letter-bombing is becoming increasingly more frequent, but the crime lab is the place where the scientists pursue the bombers. S1/Ep11
Poisoners: devious killers relying on their victim's trust in order to steal their lives. Find out why they don't usually stop at just one kill. S3/Ep9
With only charred remains left of the victim, forensic detectives have to sift carefully through this scanty evidence to solve a perplexing murder. S1/Ep10
A motel clerk disappears, leaving behind a trail of blood. Investigators have their suspect, but without a victim, what can they charge him with? S1/Ep9