Officers are close to identifying a suspect in the case, it is understood, but no arrests have been made at this point.
Several young women have told of being followed home in the area in recent times by a stalker -- who came right up to their front doors.
In one case the stalker was found masturbating in a front garden.
Detectives must now try to ascertain if there is a link between all the various sightings and incidents.
The Herald reported last night how a sex assailant broke into a house in the Marlfield estate area, off the Johnstown Road in Cabinteely, before raping her and fleeing on foot. Locals have been put on high alert since the incident which occurred shortly after 3.30am.
It's understood that the man may have followed his victim on foot from a local pub before he pounced, entering a house and attacking her. The victim was socialising in the pub before she was attacked, according to local sources.
Gardai have launched a manhunt following the incident and patrols in Cabinteely area have been stepped up. Locals told of living in fear because of the incidents in the area.
After the vicious rape, the victim managed to contact a friend and gardai were alerted.
Friends of the woman, who is in her mid-twenties, have said that the incident has left her "traumatised".
A source who lives in the area told the Herald this morning: "There's a lot of speculation going around. We just hope the man who did this is brought to justice so that other women don't suffer like this woman has."
Locals have expressed concern at the high number of strangers that have been seen in the area at night.
Gardai from Dun Laoighaire and Cabinteely have been carrying out door-to-door enquiries in a bid to arrest the attacker.