Retired Detective Sergeant Joseph Giacalone had the pleasure of working with compassionate cops who truly loved the job and "cowboys" who were unworthy of the badge. Here are some of his stories.

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.

We asked Live PD's Officer Alyssa Wright how it feels to be called a role model, working with her K-9 partner Cairo, and what you didn't see happen during that intense take down featured on a recent episode.

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

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

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

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?

With O.J. Simpson having recently been granted parole after serving almost nine years for armed robbery, we're reminded of some other famous folks who have gotten in trouble for supposedly sticky fingers.

Join Brooke Gittings from the hit podcast, Convicted, as she takes a deeper dive into the Cold Case Files episode, "A Family Secret," in the latest installment of Cold Case Files: The Podcast.

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.

Tony Lewis Jr. talks to us about his struggle getting people to understand that when a person goes to prison, their family goes with them.

Isabel Martinez recently shocked the world by allegedly stabbing to death her husband and four of her five children (she's been charged with multiple accounts of murder and aggregated assault). Although she has yet to be convicted of any crime, we are reminded of famous cases of mothers convicted of killing their children.

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

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

Join Brooke Gittings from the hit podcast, Convicted, as she takes a deeper dive into the Cold Case Files episode, "Officer Down," in the latest installment of Cold Case Files: The Podcast.

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

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

Ted Bundy was one of the most prolific and notorious serial killers in U.S. history—he confessed to murdering at least 36 women, but some estimates put the number of victims as high as 100. But despite his infamy, many people find him to be one of the most physically attractive and charismatic murderers.

Caylee Anthony’s disappearance shocked the nation in 2008.