A boxing fan nicknamed 'Jugs' or 'Jumbo' known to have frequented a west London gym is wanted by National Crime Agency investigators (NCA) after seven kilos of cocaine were seized at an airfield in North Yorkshire.
The NCA is appealing for information regarding the whereabouts of Jason Waterman, 31, who is suspected to have been at the airfield on October 18 2015, the day of the seizure.
The haul of drugs, which if cut and sold on the streets would likely be worth around £1.2 million, were found in a briefcase recovered by Border Force officers at Bagby Airfield near Thirsk shortly after the arrival of a light aircraft.
Officers witnessed a man running from the scene as they attended.
The pilot of the plane was arrested and is due to stand trial in February 2017 charged with importation offences, but attempts to locate Waterman have so far been unsuccessful.
Waterman, who also goes by the nickname 'Jugs' or 'Jumbo', is known to have links to the north and west London areas, as well as Watford.
He is also believed to be a fan of boxing and mixed martial arts and is thought to have been a member of the London Shootfighters MMA club, and previously frequented the Gymbox Westfield gym in Shepherd’s Bush .
Mick Maloney, from the NCA’s border policing command, said: "This was a substantial quantity of cocaine with a street value of more than £1.2 million and it is important that we speak to Jason Waterman as part of our investigation.
"We know he has links to north and west London and has previously visited gyms in those areas. His appearance is quite distinctive and I would ask anyone who may have seen him or knows anything about his whereabouts to come forward.
"I’d also ask that anyone who saw anything suspicious around Bagby Airfield on that day last autumn to get in touch, no matter how small they think it is. It could be important.
"They can either contact us directly using the details on our website, or via Crimestoppers on 0800 555111."