A 29-year-old man was arrested yesterday after €2.5m of drugs were seized when gardai raided a west Dublin apartment being used as a drugs factory.
The arrest came as part of an investigation known as Operation Tara.
There was no one present when officers raided the property on Thursday and found what is described as an "Aladdin's cave" of multiple different types of drugs.
Operation Tara was launched by Garda Commissioner Drew Harris in April.
Divisional drug units now combat local drug gangs while working with divisional asset profilers, trained by the Criminal Assets Bureau.
The suspect in custody last night in Ronanstown Garda Station is from the Clondalkin area but has also been based in Co Westmeath and he was picked up following a manhunt.
He is suspected of "controlling" the drugs factory and he has a number of previous convictions for offences such as driving matters and drug possession.
Confirming the €2.5m drugs seizure, a garda spokesman said: "During the course of this search, gardai discovered an assortment of suspected controlled drugs, including 34 kilos of vacuum-packed cannabis with an estimated value of €680,000.
"They also found MDMA with an estimated value of €40,860, pink Upjohn tablets valued at €22,146, blue ecstasy tablets valued at €176,190, pink powder for Upjohn tablets valued at €168,000 and €3,550 respectively, white ecstasy tablets valued at €66,240, ketamine valued at €60,000, Xanax tablets valued at €81,700 and further ecstasy valued at €1,187,500."
Gardai also said they seized suspected drugs paraphernalia including a drugs press, mixing machine and storage material.
In February Mr Harris said gardai were "collectively concerned" about the amount of drug dealing on the streets.