To the surfers and dog walkers on the Cornish beach it must have looked like a scene from a crime thriller. An ocean chase ending with two boats crunching aground on the sand, a stumbling attempt by three men to escape into the dunes, dramatic arrests and the discovery of millions of pounds’ worth of cocaine.
For the investigators it was the start of a painstaking investigation that has shone a unique light into a tactic used by South American drug gangs and British organised crime groups known as at-sea drop-offs or Asdos, in which bales of cocaine fitted with GPS trackers are dumped at sea from a transatlantic “mother” ships to be picked up by small vessels and smuggled into the UK via quiet coves and harbours.
