Notorious gangland criminal Derek 'Bottler' Devoy remained in custody last night after a daylight machine pistol shooting spree caused a massive garda alert in a north Dublin suburb.
The 39-year-old gangster was being questioned in Ballymun Garda Station under firearms legislation.
A senior source said he is likely to be charged with serious offences at some stage today.
Sources have also con- firmed that a grenade found in the bathroom of a house that Devoy had barricaded himself in before his arrest was confirmed viable after being tested by Army experts.
It has emerged that the house Devoy ran into at Cranogue Road, Ballymun, on Monday evening is linked to a drug addict associate of his, who is currently in jail in relation to theft offences.
This man, who is aged in his 30s, is not considered to have any involvement in organised crime but would have known Devoy as they grew up together, according to a senior source.
Devoy was caught on camera roaming around the Poppintree area of Ballymun, firing shots from a machine pistol close to a number of shops at around 4.30pm on Monday.
When gardai responded to the situation, the career criminal fled to the house on Cranogue Road, where he was soon overpowered and arrested by unarmed gardai.
"It seems Devoy may have thought, for whatever reason, that he may have got a safe haven in that house," a senior source said.
"But who knows what he was thinking - the man was completely off his head.
"He does know another man whose family home that is, but that man is in jail."
Garda Commissioner Drew Harris led the tributes to the unarmed officers who were involved in the arrest operation.
"The gardai involved showed great bravery in ensuring the safety of the public," the commissioner said.
Devoy is suspected of being in the middle of a number of dangerous feuds, including with north inner city associates of the Hutch mob.
It is this gang that is suspected of murdering Devoy's innocent sister Antoinette Corbally (47) in August 2017.