A 53-year-old woman has come forward to tell officers at Sundrive Rd garda station that, as a young girl, she was abused by a number of men, including a close relative, with the attacks starting when she was just five years old in 1966.
She claims when she was 12 years old she became pregnant and, when she gave birth, the baby was taken from her by a relative and suffocated before being buried in the back garden.
She said the same thing happened when she was 14.
Gardaí have interviewed the woman and are understood to have corroborated details of her story.
According to UTV Ireland, as part of their investigation, detectives also plan to talk to a woman who is aged in her 90s about the claims made. At least one of those accused of raping the victim is dead.
The excavation of the garden, which is expected to take two to three weeks, will involve the help of a forensic anthropologist and a forensic archaeologist. It is believed that, even though the babies would have been very small, there will still be traces of them if they were buried in the location.