DNA profiling is being used to narrow down potential suspects in an investigation into an alleged rape in Dublin.
Gardaí are understood to have chosen around 100 men for screening - because their cars match the suspect's vehicle.
The Irish Times says the attack was reported by a woman after a night out on December 11th 2015.
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It's the first time Gardaí will conduct such an operation since the introduction of the country's DNA database over 12 months ago.
Dr Patrick Randall is Director of Forensic Psychological Services Ireland: