A man was last night being treated in Tallaght Hospital for self-inflicted knife injuries after he was allegedly involved in an attempted carjacking and hit-and-run collision.
The Tallaght-based suspect, a 39-year-old Polish national, is not known to gardai for involvement in crime.
He is expected to be arrested as soon as he is discharged from hospital.
"This individual was highly intoxicated and it is suspected that he was under the influence of cocaine and alcohol," a source told the Herald.
"He suffered a number of self-inflicted deep cuts to his arms and he also threw a knife at gardai, which ultimately meant that gardai had to use a Taser to subdue him," the source added.
Gardai announced details of the case, which happened shortly before 9pm on Monday when the suspect allegedly drove behind a female driver at Cookstown Way, in Tallaght.
A source said that the suspect is then alleged to have "undertook" the woman's car on the inside lane which led to her car smashing into a bollard.
The female driver, aged in her 30s, was uninjured in the collision, which caused "serious damage to her vehicle".
The male driver of the other car then fled the scene on foot and tried to run into the Square Shopping Centre but was refused entry because of his intoxicated state.
It is understood he then ran to the nearby Watergate Estate, where he attempted to hijack a car which was occupied by a local couple in their 30s.
Despite the suspect allegedly threatening them with a knife, he failed to get their car and they were uninjured in the incident.
The suspect then fled in the direction of Old Bawn and ended up in the Rosebank Estate, where he was eventually found by gardai after a major security alert was put in place.
"Local detectives and ASU (Armed Support Unit) members were alerted to both incidents and during a follow-up operation located a man armed with a knife at nearby Rosebank Estate," a garda spokesman said.
"As gardai attempted to approach the man he inflicted a number of knife wounds to himself.
"Non-lethal force options were used by ASU members to apprehend the individual safely.
"Gardai administered first aid to him before rushing him to Tallaght Hospital, where he is continuing to recover," he added.