The Criminal Assets Bureau has conducted searches in Kildare as part of its investigation in to a gang based in Cabra in Dublin.
Properties in Leixlip were among 24 searched in areas including Cabra, Finglas,Monkstown, Courtown and Gorey areas
They included private residences and professional offices.
Gardaí seized a large amount of documentation and evidence, that they believed relate to the proceeds of crime.
Cocaine with an estimated street value of €3,500 was seized during one of the seachs in Finglas, and a 37 year old man arrested.
The operation and searches, which includes the Garda National Drugs and Organised Crime Bureau, Emergency Response Unit. Armed Support Unit, are continuing.