If you want justice, you need to understand the significance of forensic evidence -- this is the message from KPC Gandhi, former inspector general of Andhra Pradesh Police to victims of heinous crimes and citizens, in general. Gandhi, who for many years served as director of AP Forensic Science Labs, believes it's not just the police or other law enforcement agencies, but also citizens, who need to understand forensic science. "Collection of evidence starts with citizens, the police's role comes later," he said.

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