Tallaght Garda station reopened on Friday night after a security alert. Road closures in the area were also lifted.
The station had earlier been evacuated to allow Defence Forces explosive ordnance disposal officers complete their examination of a suspect bag and contents.
The bag and contents were removed for further technical and forensic examination.
A male in his 30s was arrested and detained under Section 30 of the Offences Against the State Act. Investigations are ongoing.
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In an earlier statement, gardaí said officers on patrol in the area on Friday evening had arrested a man.
“On arrival back at Tallaght Garda station, an initial inspection of a bag in possession of the male indicated contents of concern.”
As a precaution, the building was evacuated and the Defence Forces team was called. Some road closures in the vicinity of the Garda station were put in place.
