Revenue has seized 20 thousand euro in cash and almost 30 thousand cigarettes in separate operations in Dublin.
The cash was seized when a truck arriving from Holyhead at Dublin Port was stopped and searched.
Officers have been granted a three-month detention order to investigate further.
Elsewhere nearly 30 thousand cigarettes were uncovered in two separate operations.
20 thousand 'NZ Gold Slim' cigarettes - worth over 10 thousand euro were found when a house in Clonsilla was searched.
A Russian man was interviwed and investigations are continuing.
While 7,600 Marlboro and Craven A brand cigarettes were found when a premises in Clondalkin was searched.
A Vietnamese woman was interviewed and a file is being prepared for the DPP.