Revenue has seized €20,000 in cash and almost 30,000 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.
Elsehwere nearly 30,000 cigarettes were uncovered in two separate operations.
20 thousand 'NZ Gold Slim' cigarettes - worth over €10,000 were found when a house in Clonsilla was searched.
A Russian man was interviewed and investigations are continuing.
Meanwhile 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.