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Garda Faulkner said the girl was subscribed to the under-17s category of the website.
Gardai identified phone messenger Whats App as the main point of contact.
One image of the girl in her school uniform was taken when she was aged 15, it was alleged.
The Garda believed he would evade trial if granted bail and he had a considerable amount of resources through his windfall, the court was told.
It was also feared he would interfere with witnesses, Garda Faulkner said.
Since their last alleged meeting the man has been in contact with the schoolgirl and her family.