bdul Ahmead, 48, who was fined earlier this week after boarding a flight to Birmingham without a passport or boarding pass, tried again to get through the airport on Thursday morning.
He was stopped by a member of An Garda Síochána in Terminal 1 and a court has now ordered his expulsion. He still had to go through the screening area and was not airside.
The Irish independent may reveal that a second man, in his 30s and also without a valid ticket, attempted to pass through the self-checkout gates in Terminal 1 around 1 p.m. on Thursday.
He was warned by An Garda Síochána after being arrested by the airport police.
A Garda spokesperson said: “A second man in his 30s was arrested at Dublin Airport for a public order offense and taken to Dublin Airport Garda station.
“This man has been treated under the Adult Caution Scheme.”
A spokesman for the airport authority DAA said: “Close cooperation between airport security and An Garda Síochána at Dublin Airport resulted in the arrest of two people.
“We do not comment on specific aspects of aviation security operations.”
The Irish independent previously highlighted how Ahmead successfully boarded an Aer Lingus flight without a valid boarding pass or passport on Monday night.
He was on the plane when the airport police came to get him.
He returned to the airport at 11 a.m. on Thursday, was spotted by a garda who recognized him, and was arrested shortly afterwards.
Ahmead was again charged with trespassing and immigration offenses and returned to Dublin court on Thursday afternoon.
He was given an eight-week suspended prison sentence as long as he cooperates with authorities and is deported.
The incidents come as the Irish Aviation Authority is investigating a protected whistleblower disclosure claiming screening at the airport is “not fit for purpose” and could lead to a terrorist attack.