Microscopic DNA Clue Solved the Case

In the last video, we mentioned there was a microscopic clue that turned the entire case

around. Today, that truth. An iron rod was recovered from the

crime scene, which looked like just a piece of metal. But for the forensic

lab, it was a speaking witness. On that iron rod were microscopic

particles of blood and skin cells, invisible to the naked eye. But for DNA testing,

these are the most powerful. DNA profiling means extracting a unique biological code

from the body's cells. Just like a fingerprint, which belongs to only one person.

In this case, there were six suspects. DNA profiling, CCTV footage, mobile phone records,