At the opening of a new Garda station in Ballymun this afternooon, Fachtna Murphy said he shared people's concern following four murders linked to organised crime.
However he said in the past two weeks gardaí have seized 21 firearms including eight handguns and more than €4m worth of drugs.
Also at the opening, the Minister for Justice said tackling organised crime was the Government's priority.
Ballymun in Dublin is said to be one of the parts of the country badly affected by organised crime but also one of the areas where the gardaí have good relations with the community.
Community policing - such as meeting and talking to young people on the ground - is what the Garda Commissioner says is at the forefront of policing violent and organised crime.
Mr Murphy said he shares the concern people have about organised crime in the wake of the four recent murders but he says he is confident of bringing people before the courts in relation to them.
He said that other lives have been saved through Garda interventions. He also said there were intelligence-led operations targeting particular individuals in organised crime.
