A 27-year-old man has been charged with drugs offences linked to the seizure of £900,000 worth of cannabis in Belfast in October 2010.
The man has been charged in connection with the supply of class b drugs.
He is expected to appear in court on Thursday.
A 72-year-old man arrested in Belfast and a 32-year-old arrested in Ballymena were released pending further police investigations.
The arrests followed a parallel investigation carried out by the PSNI and East Midlands police.