PSNI detectives have appealed for information on the death of a newborn, 30 years after the baby boy's body was found on a riverside in Co Antrim.
Police have appealed to the parents to come forward and reveal what happened.
The baby's body was found on the banks of the River Lagan near Lisburn by a woman walking her dog.
The infant had been placed in a green plastic bag.
A post-mortem examination revealed that the baby boy had been born alive but had died of head injuries.
The PSNI said they had obtained a DNA profile and efforts are being made to match this with samples on the DNA database.
A spokesman said the best way to reach an informed resolution to the investigation was for the boy's parent or anyone who has information to come forward and talk to police.