A Niwot man has been arrested after prosecutors say he downloaded child pornography and also transferred files to others, including undercover detectives.
Patrick Thomas Caraher, 47, was arrested on suspicion of four counts of sexual exploitation of a child. Two of the counts are for possession of 20 or more items, while the other counts are for possession with intent to distribute and selling or publishing.
According to an arrest affidavit, an investigator with the Boulder County District Attorney's Office assigned to an internet crimes against children task force flagged an IP address on Jan. 17, 2018 that transferred or possessed more than 73,000 files marked as "files of interest" by the National Center of Missing and Exploited Children.
The investigator said detectives in Estes Park and Nevada were able to download files from the IP address that contained images of child pornography videos and images of prepubescent girls in various states of undress and sexually suggestive poses.
The investigator obtained a warrant and tracked the IP address to Caraher's address in Niwot.
Prosecutors obtained a warrant to search Caraher's home in February 2018 and seized computers and external storage devices that had a log of files Caraher had transferred to his computer. According to the affidavit, many of the files corresponded to known child pornography torrents.
According to the affidavit, Caraher admitted to police he downloaded the child pornography and said nobody else using the IP address was responsible for the downloads.
Caraher has no previous criminal history in Colorado, according to court records. He was booked and released from the Boulder County Jail on a $25,000 personal recognizance bond and is due for a formal filing of charges on Tuesday.