An investigation has been launched after tag readers were cut on the M50 yesterday.
A 48 year old man cut a number of wires on the bridge at around 9.30pm, which meant drivers went "toll free".
The M50 was closed for a time as Garda negotiators communicated with the man.
He was arrested and taken Blanchardstown Garda Station and is due to appear before the Criminal Courts of Justice today.