Channel 4 24 Hours in Police Custody episode have told how they brought a £58million drug ring to justice this year. The Eastern Regions Special Operations Unit (ERSOU) investigated Hertfordshire's "biggest ever" drugs bust last year.The documentary gives a rare fly on the wall insight into covert policing and tells how last August undercover officers intercepted 70kg of cocaine and 45kg of heroin.Detectives were first alerted to the drug ring on August 21 after Border Patrol officers found drugs hidden in spider catchers at a port in France the day before.They tracked the delivery to a business unit at Little Samuels Farm in Hunsdon, Essex rented by head of the drug gang Robert Brooks.Cops allowed the delivery to go ahead 24 hours later.
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