An FBI agent has claimed that a man accused of being the largest facilitator of child abuse images in the world is a flight risk and must not be granted bail.
Eric Eoin Marques, 28, is wanted in America on four charges linked to online images depicting the rape and torture of children.
At an extradition hearing at High Court in Dublin, FBI special agent Brooke Donahue said there was evidence that Marques had looked up how to get a Russian visa and fake passport.
Marques is accused of being the sole administrator of an anonymous hosting server on which images of child abuse were shared.
He faces up to 100 years behind bars if he is extradited to the US to answer the charges.