200 words on each questions Week 2: Explain and discuss the expanding role of the patrol officers as criminal investigators. Week 3: Explain and discuss how to search and collect evidence from crime scenes. Week 4:Discuss and identify the different roles of crime scene technicians and crime laboratory personnel in criminal investigations. Week 5: Discuss the legal issues and guidelines to be considered when conducting searches during criminal investigations. Week 6: Explain and provide case examples that demonstrate the importance of DNA in criminal investigations.