The Criminal Assets Bureau handed over almost €4m to the State in 2014 arising from investigations into criminal gangs, according to records revealed today.
The annual report for the Bureau shows assets worth more than €6.5m were seized during the year - a 140% increase on 2013.
The bureau obtained high court orders freezing half a dozen properties worth almost €450,000 and jewellery to the value of €17,000 in 2014.
In the same year, 76 cars and cash of over €6m was frozen by the CAB in the fight against organised crime, dissident groups and drugs gangs.
Its annual report reveals it pursued dissident republicans for Revenue offences because of their involvement in diesel laundering, cigarette smuggling and counterfeiting.
During the year, 61 search warrants were issued and 185 orders to make material available were approved.
The Bureau also seized bitcoin for the first time .
Minister Fitzgerald welcomed today's report and the increased focus by CAB on organised traveling gangs engaged in burglary and robbery.