Salcio

I. BACKGROUND

In February 2005, Detective Ken Hedrick of the Stanislaus County Sheriff’s Department conducted an investigation into peer-to-peer file sharing of child pornography on the Internet. He utilized a program to locate files containing child pornog- raphy by searching for the term “babyj” and compared his search results with a list of known child pornography files. He then obtained a list of IP addresses that had those files avail- able for downloading. Upon finding a computer in California that had child pornography files available for sharing, Hedrick referred the information to the Bureau of Immigration and Customs Enforcement for additional investigation. The Bureau sent a summons to the Internet service provider to obtain subscriber information for the California computer. UNITED STATES v. SALCIDO 14123 Using the subscriber information, Special Agent Mike Prado obtained a search warrant for the address of the defen- dant, Salcido. When the search warrant was executed in Feb- ruary 2005, two computers and a CD-ROM were seized from the residence. At the time of the search, Salcido initially stated that he had not purposely obtained child pornography,…