TV Guide Sky Crime Friday

Tragedy struck the University of Miami when linebacker Marlin Barnes and his girlfriend were found murdered in his apartment. With no witnesses, investigators delve into Miami's hip-hop scene to unravel the mystery behind their deaths

The work of British Transport Police's canine units, which help monitor the safety of commuters on thousands of miles of railway and underground track. The programme follows a spaniel trained to search for drugs, as well as police dogs that help their human handlers control the crowds at football matches. Ken Stott narrates

Dominic Littlewood reports on the determined sisters who set up a camera to expose whoever was stealing from their grandmother. Plus, how burglars left clues amidst the chaos when they ransacked a jeweller's and the trio of fly-tippers who dumped themselves right in it