Exhibit A: Secrets of Forensic Science

S04:E11 - Point Blank

Disguised bandits fell a Brinks guard in Oshawa. The police find a fake bomb in the abandoned getaway car. It is a major forensic clue in tracking the gang. The bandits are charged, but the prosecution needs to find the murder weapon. Just days before the trial, investigators get a break, putting them knee-deep in swampy water searching for the murder weapon.