Gardaí from Blackrock received a report of a suspicious man in Mahon Drive shortly before 5am this morning and carried out a patrol of the area.
The man was found in possession of tools and a bank card that had been stolen from cars in the area.
Gardaí also found the man was carrying a knife.
He was arrested and brought to the Bridewell Garda Station.
He is due to appear before the courts at a later date.
