NOVA Season 20 Episode 19 Murder, Rape and DNA

In the NOVA season 20 episode 19 titled "Murder, Rape and DNA," viewers are taken on a journey through the world of forensic DNA analysis. This episode explores how DNA evidence has revolutionized the field of crime investigation, providing investigators with a more accurate tool for matching suspects to crimes.

The episode delves into the history of DNA analysis, tracing its origins back to the landmark case of State v. Wesley in 1986. Since then, this technology has become increasingly sophisticated, allowing forensic scientists to extract DNA from incredibly small and degraded samples. With the advent of high-throughput DNA sequencing and other advanced techniques, scientists are able to analyze DNA faster, cheaper, and with greater accuracy than ever before.

But the show doesn't just focus on the science of DNA analysis. "Murder, Rape and DNA" also explores the ethical implications of this technology, including its potential to be used to invade people's privacy and to perpetuate racial biases. Viewers also learn about the controversy surrounding the use of DNA evidence in the court system, and how investigators and lawyers use this evidence to build their cases.

Throughout the episode, viewers meet a number of forensic scientists, investigators, and lawyers who have been instrumental in advancing the field of DNA analysis. They also hear from victims of crimes who have been able to find closure thanks to DNA evidence, as well as from people who question the use of this technology in the criminal justice system.

Overall, "Murder, Rape and DNA" is a fascinating look at one of the most important breakthroughs in modern crime investigation. This episode is a must-see for anyone interested in science, law, or the intersection of the two.