Just Science

In episode three, Just Science sat down with Amanda Mohr and Dr. Alex Krotulski from the Center for Forensic Science Research and Education to discuss the analytical and interpretative challenges associated with emerging drug threats. The Center for Forensic Science Research and Education, otherwise known as the CFSRE, oversees a collaborative effort to better understand emerging drug threats. CFS...

Last week, Just Science sat down with Dr. Jon Zibbell, a Senior Public Health Analyst from RTI International, to discuss how stimulants are intersecting with the opioid epidemic and its impact on communities. Researchers and epidemiologists like Dr. Zibbell are working tirelessly to develop methods for predicting trends in opioid and illicit stimulant use. As drug overdose rates continue to rise,...

In the first half of this two-part episode, Just Science sat down with Dr. Jon Zibbell, a Senior Public Health Analyst from RTI International, to discuss the waves of the opioid epidemic and their impact on communities. The world of medical anthropology offers a very different perspective of the current rise in illicit substance abuse. While much of the research surrounding overdose and drug trend...

In the final episode of the Case Studies season, Just Science sat down with Tim Schade and Brian Cochran to discuss off-the-shelf crime scene processing products. Budgetary concerns often plague smaller forensic labs and law enforcement agencies. Scene investigators might realize that some of those expensive forensic tools might not be attainable for their departments. Savvy shoppers, such as Tim...

In episode seven of the Case Studies season, Just Science sat down with John Vanderkolk and Marcus Montooth of the Indiana State Police to discuss erroneous identification and the Lana Canen case. In 2005, Lana Canen was convicted as an accomplice for the robbery and murder of 94-year-old Helen Sailor. After serving eight years, her conviction was overturned, and she was released from prison. John...

In episode six of the Case Studies season, Just Science sat down with Karen Oswald, Senior Evidence Specialist with the Suffolk County Police Department in New York, to discuss methods for identifying fingers and hands captured in evidentiary photos. As cellphone and camera technologies continue to improve, so does the quality of the images they produce. Most people today carry smartphones at all...

In episode five of the Case Studies season, Just Science sat down with Rockne Harmon, forensic consultant and former senior deputy district attorney for Alameda County in California, to talk about familial DNA searching and the case of the Grim Sleeper Serial Killer. From the mid 80s to 2007, Lonnie David Franklin Jr, otherwise known as the Grim Sleeper, was responsible for at least 10 murders in...

In episode four of the Case Studies Season, Just Science sat down with forensic consultant, author, and instructor Brian Dalrymple to discuss his research and impact on the field of latent print identification. In 1977, a team of researchers developed a method for detecting fingerprints by examining inherent fluorescence using an argon ion laser. This new technology revolutionized the field of lat...

In episode three of the Case Studies Season, Just Science sat down with Heather Conner, Latent Print Unit Technical Leader in Mesa Police Department’s Forensic Services, about the investigation of a grisly murder in Arizona. In June of 2008, Travis Alexander was found dead in the bathroom of his home. His killer, ex-girlfriend Jodi Arias (air ias), was found guilty of first-degree murder and sente...

In episode two, Just Science sat down with Erin Sims, Forensic Lab Manager at the Lincoln, Nebraska Police Department, about bloodstain pattern evidence in forensic investigations. Not all crime scenes will have bloodstains. But when they are present, analysts can use them to help determine the types of activities or mechanisms that produced them. Erin Sims believes that bloodstain patterns can te...

In the Case Studies season opener, we sat down with Mitchell Pilkington, crime scene manager at Layton City Police Department in Utah, to discuss psychopathy and criminal behavior. This season is funded by the National Institute of Justice’s Forensic Technology Center of Excellence.

In this Forensic Science Week special episode, Just Science interviews Brett Williams, the CEO of Verogen, about the GEDmatch database, how it can be used by law enforcement to perform forensic genealogy searches for investigative leads, and the short- and long-term plans Verogen has for the widely used database and related services. Verogen is a spin-off of the Illumina corporation and has grown...

In episode eight, Just Science interviews Dr. Kathryn Seigfried-Spellar from Purdue University about the impact of disturbing media on forensic professionals. Repeated exposure to violent and graphic media can have long-term negative effects on digital forensic examiners. Dr. Kathryn Seigfried-Spellar is researching the connection between disturbing media and the examiners who analyze it every day...

In episode seven, Just Science interviews Dr. Catalin Grigoras and Cole Whitecotton from the National Center for Media Forensics about deepfakes. Deepfakes are a form of synthetic media that replaces an existing image with someone else’s likeness. While relatively new, deepfake technology has grown in sophistication over the last few years. In some cases, the synthetic image is almost indiscernibl...

In episode six, Just Science interviews Barbara Guttman from the National Institute of Standards and Technology about the first large-scale black box study to test the accuracy of computer and mobile phone forensics. In forensic science, black box studies are used to measure the reliability of methods and techniques that rely on human interpretation. Barbara Guttman and her team at NIST are workin...

In episode five, Just Science interviews Matt Ruddell from Florida International University about their efforts to develop forensic education and training programs at FIU. The National Forensic Science Technology Center at Florida International University offers a variety of courses, consulting, and training geared toward forensic scientists. Matt Ruddell and the rest of the faculty at FIU are wor...

In episode four, Just Science interviews Paul Reedy, Owner of 4th Street Global, a digital forensics and cyber security consulting firm, about data stories and the future of digital evidence. Rapidly changing technology can complicate the analysis of digital evidence. As such, it is imperative that researchers and investigators work to stay on the cutting edge of the digital world. Paul Reedy beli...

In episode three, Just Science interviews Martin Novak, a Computer Scientist with the National Institute of Justice, about digital evidence in the United States Court of Appeals. Digital evidence has the capacity to identify suspects, win acquittals, and obtain convictions. Whether through cars, smart homes, cell phones, personal computers, or a myriad of other devices, analysts are able to collec...

In episode two, Just Science interviews Nicolas Hughes, assistant public defender with the Harris County Public Defender’s Office in Houston, TX, about the validation of tools utilized by digital forensics laboratories. Many forensic laboratories face overwhelming caseloads; digital forensic labs are no exception. The diversity and complexity of devices that can be used as digital evidence continu...

While the realm of digital evidence is still relatively new, it requires validation and testing like all forensic disciplines. Digital evidence is a dynamic discipline that can often provide greater insight into the investigation of a crime or the defense of the alleged perpetrator. In this season of Just Science, we will be covering the history and interpretation of digital evidence, emerging tec...

afj2gv6x In this special release episode of Just Science, we sat down with Ashley Church and Erin West, founders of Gap Science, to discuss stress and resiliency in crime scene investigators. Traumatic death investigation can have adverse, long-term effects on crime scene analysts. As Ashley Church and Erin West moved through their respective careers, they noticed a lack of training around protect...

In episode seven of the 2020 R&D Season, Just Science interviews Kimberly Sturk-Andreaggi, a Research Scientist at the Armed Forces DNA Identification Laboratory, about the development of entire mitogenome reference data using an automated high-throughput sequencing workflow. Disaster victim identification comes with a unique set of hurdles. Poor-quality DNA, decades-old samples, and a lack of rel...

In this episode of the 2020 R&D Season, Just Science interviews Dr. José Almirall, Professor of Chemistry and Biochemistry at Florida International University, about a statistical approach for the interpretation of glass evidence. One criticism levied against trace evidence examinations is that the interpretation can sometimes be too subjective. Interpretation sometimes plays a large role in the e...

This week on Just Science, we are publishing a special release episode in honor of Sexual Assault Awareness Month. Social distancing, shelter in place, and other responses to COVID-19 can create a stressful environment for survivors of sexual assault especially if they feel they cannot access resources or are physically unable to seek help. In addition, highly stressful situations that result from...

In episode five of the 2020 R&D Season, Just Science interviews Dr. Travis Rusch, a postdoctoral research associate at Texas A&M University, about fluctuating temperatures in forensically important blowflies. Forensic entomologists use predictable developmental rates of certain necrophagus insects to estimate time of colonization, postmortem interval, and time of death. However, extreme fluctuatio...