BARB stands for Broadcaster Audience Research Board and is responsible for providing official television audience measurement in the UK. The top 4 crime drama programmes and their audiences are: 1) New Tricks on BBC1 with 8.26 million viewers, 2) Hunted on BBC1 with 4.50 million viewers, 3) Homeland on Channel 4 with 2.74 million viewers, and 4) CSI Miami on Channel 5 with 1.14 million viewers. New Tricks follows retired London police investigating unsolved crimes and appeals to teenagers and younger adults. Hunted follows a spy being hunted by a ruthless enemy in the UK. Homeland is about a Marine held captive in Iraq who may attack America and involves CIA investigations.