The cases you have highlighted underscore the importance of what crime scene technicians and detectives do to further justice. It is unfortunate that we as humans are capable of such things. You must be ready when/if it happens to do your job safely, professionally, and in accordance with standard operating procedures. That can be difficult at times. Consider being the responding officer/detective or crime scene technician at any of the listed cases. Many departments will de-brief after such scenes to allow employees to talk about how it has affected them. It is important to stay focused and your mental health should always be a priority. The tragic killings of the Idaho college students appeared to involve an analysis of DNA as part of the crime scene. Law enforcement has been gaining access to DNA Ancestry sites to obtain potential leads on cases with DNA evidence over the objections of some civil liberty groups. What is your opinion of this tactic