June 17: Afghan-ISAF Operations in Southern Afghanistan  ISAF Joint Command - Afghanistan  2010-06-CA-063  For Immediate Release  An ISAF patrol discovered large quantities of drugs in Garm Ser district, Helmand Province, Tuesday.   The force found 450 kilograms of opium hidden under a false floor in a truck after the driver tried to avoid a vehicle checkpoint. The driver and a passenger were detained.