Forensics: The Real CSI: Season 3, Episode 4

3 - 4: Tracking a Paedophile

A 12-year-old girl comes forward to say she has been groomed online and raped several times, so West Midlands Police quickly identify and arrest the suspect. However, as it is several weeks since the alleged attacks, there is limited physical evidence, so the officers have to rely on digital forensics, leaning heavily on two smartphones seized from the suspect.