Why is it yellow? Can you really get two years behind bars for crossing it? Learn more about the origins of crime scene tape.

We look at some high-profile cases where crime-scene glitches may or may not have tipped the scales of justice.

Check out the A&E syllabus for JonBenét Ramsey 101.

Alexis Robie, executive producer of "The First 48," on what he's learned from the show, including the worst crime he ever covered.

A forensic artist about her work from reconstructing a lost person from a skull to helping traumatized victims remember visual details.

Live PD viewers, fast-food employees and convenience store clerks step in to help out the police in this Hometown Heroes round-up.

Sgt. Sean "Sticks" Larkin of Live PD on why he's resonated with fans and how he copes with the public's perception of law enforcement.

We speak with author Nick Bilton about Ross Ulbricht's extremely successful (and totally illegal) website.

Q&A with Bill Kurtis on his prison fan mail, the worst case he ever saw, and how you can go home again.

When that missing child is a teenager, the response is often much different than a child.

Learn about cities that offer a police ride-along program and proper civilian ride-along etiquette.

Q&A with Robert Kolker on crime podcasts, pet peeves and insights.

Some of the dog breeds that serve and protect in law enforcement agencies around the world.

A timeline of dedicated (and sometimes deputized) dogs.

Ari Mark, executive producer (with Phil Lott) of "Cold Case Files" (2017), spoke with us.

Jesse Jannetta breaks down O.J.’s parole hearing process and outcome.

Hot weather can spark tempers, and experts have plenty of theories.

Deb Davis shares how Michigan inmates train service dogs and benefit.

Q&A with Live PD's "Sticks" about fentanyl, when to intervene if you witness an attack, and his after show snack of French toast.

Learn about the cold case murder of an Arizona college student.

Learn about the 1998 cold case Murder of Yale student Suzanne Jovin.

We've all heard that one big sign someone is lying is if they can't look you in the eye. How much truth is there to that? Apparently, none.

We ask retired a CSI detective about the legitimacy of forensic techniques on TV to learn which are real and which are just for the camera.

Ken Holmes, a retired death investigator and coroner, on the small clues that have helped solve big crimes.

Retired CSI Ken Martin breaks down what happens once law-enforcement arrives and some of the challenges he's faced in gathering evidence.

Many people think the concept of a citizen's arrest is a joke or a myth. We asked Live PD analyst Tom Morris Jr. about this practice.

Q&A with Christina Lindstrom, Impact Producer of "The Keepers" about the staggering sexual abuse statistics in the U.S.

Social worker Brooke Gittings, whose wildly successful Convicted podcast tells the story of imprisoned killer Richard Nicolas, talks to us.

In a grand jury hearing, Preston Taylor, 19, pleaded guilty to his role in the robbery, murder, and disposal of the remains of Sarah Stern.

Live PD analyst Tom Morris Jr. shares tips on how best to behave—and communicate—during a brush with police.

Sgt. Sean "Sticks" Larkin, a member of the Gang Unit of the Tulsa Police Department, was a hit with Live PD viewers. Sticks answers our questions about how gangs took root and how to spot if your kid is involved.

In the wake of the Las Vegas mass shooting, we asked a retired coroner about how coroners prepare for large disasters.

Michael J. Tillman says 20 years in the crime-scene cleanup field have taught him how to walk the line between sensitive, personal care for a victim's family and maintaining a sense of remove so he can still come to work the next day.

Learn about the cold case murder of a teen mom from Detroit.

We asked courtroom artist and fine-art painter Jane Rosenberg what it's like to have a front row seat at some of the biggest trials of our time, why she never travels without a razor (but never in court), and what she expects at the upcoming Bill Cosby trial.

Travis Yates, editor in chief of LawOfficer.com, talks about the toll an officer's death takes on families and fellow officers.

What is "missing white woman syndrome"?

Convicted podcaster Brooke Gittings and attorney Rachel Kamins talk about where Convicted and the series The Keepers potentially intersect.

Gianni Versace's alleged murderer's killings have been described as a "spree," while the FBI classifies him as a serial killer.

A run-down of the cold case of a Baltimore nun, currently the subject of a Netflix docuseries.

Karin Ahrman, who has a 13-year-old son, received a flyer in her mailbox notifying her that a registered sex offender had moved in a few houses away. She talks to us about her fight to inform her community about their need for vigilance against sexual offenders.

There is a history of investigators, reporters, and even regular people (like the volunteers on 60 Days In) going undercover in prison to expose wrongdoing, danger, and bad treatment. Read inspiring stories of intrepid souls who went behind bars to find truth.

The Keepers asks the question "Who killed Sister Cathy?" It may be hard to imagine raising a hand against a women of the cloth, but there are, unfortunately, many other shocking cases of slain nuns.

Meet four female murders whose stories you won't forget.

Women have been murdering their children since the beginning of time. But what would drive someone to end a life they brought into the world?

Linda Fairstein talks to us about her most memorable unsolved case, what concerns her about how sexual assaults on college campuses.

We explore how Aaron Hernandez went from gridiron star to convicted murderer—and how his life is teaching researchers about the brain.

Ken Martin, a veteran crime scene investigator, describes problems that arise when gathering evidence, and how to avoid having defense attorneys claim contamination.

An interview with the Live PD trooper and guest commentator.

The 2016 mass murder of seven members of a Pike County, Ohio family (plus a fiancée of one of the men) may become the largest homicide investigation in the state's history. After a two-and-a-half-year investigation, in late 2018, the Ohio Attorney General's Office arrested four members of another local family, the Wagners, for the murders. But what's the connection?