懸案編年史：調查未偵破的犯罪

 This lesson explores what defines a cold case, why investigations go unsolved, and how advancements in technology and public involvement can lead to breakthroughs. Students will examine real-life examples to understand key investigative challenges and strategies. 

 This lesson introduces students to the fundamental techniques of crime scene investigation, including evidence collection, documentation, and the importance of maintaining the chain of custody. Students will learn how physical, biological, and digital evidence play a crucial role in solving cases, with real-world examples highlighting effective investigative practices. 

 This lesson explores key investigative strategies used in solving cases, including witness interviews, surveillance techniques, and the use of databases and modern technology such as CODIS and facial recognition. Students will learn how these tools help investigators gather critical information, analyze evidence, and uncover new leads in both active and cold cases. 

 This lesson examines how media coverage and public involvement influence criminal investigations, particularly in cold cases. Students will explore the impact of traditional and social media on shaping public perception, generating leads, and driving case breakthroughs, while also considering the ethical implications of media exposure.