State of Washington v. Casey Dullea Peppin

CourtCourt of Appeals of Washington
DecidedApril 9, 2015
Docket32058-8
StatusPublished

This text of State of Washington v. Casey Dullea Peppin (State of Washington v. Casey Dullea Peppin) is published on Counsel Stack Legal Research, covering Court of Appeals of Washington primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
State of Washington v. Casey Dullea Peppin, (Wash. Ct. App. 2015).

Opinion

FILED

APRIL 9, 2015

In the Office of the Clerk of Court

W A State Court of Appeals, Division III

IN THE COURT OF APPEALS OF THE STATE OF WASHINGTON

DIVISION THREE

STATE OF WASHINGTON, ) No. 32058-8-III ) Respondent, ) ) V. ) OPINION PUBLISHED ) IN PART CASEY D. PEPPIN, ) ) Appellant. )

LAWRENCE-BERREY, J. - A trial court found Casey Peppin guilty of three counts

of first degree possession of depictions of a minor engaged in sexually explicit conduct.

In this appeal, Mr. Peppin challenges the trial court's denial of his motion to suppress the

images of child pornography found on his computer. He raises an issue of first

impression in Washington. He contends that law enforcement's use of enhanced peer to

peer file sharing software to remotely access the shared files on his computer was illegal

under the Fourth Amendment of the United States Constitution and article I, section 7 of

the Washington State Constitution. He maintains that such conduct represents an

intrusion into his private affairs because he had a reasonable expectation of privacy in his

personal computer files. We hold that Mr. Peppin did not have a constitutionally No. 32058-8-III State v. Peppin

protected privacy right in the image files he shared with the public. We therefore affirm

his convictions.

FACTS

On December 29,2011, Spokane Detective Brian Cestnik conducted an online

investigation of the Gnutella network to identifY persons possessing and sharing child

pornography. Using peer to peer software called Round Up version 1.5.3, Detective

Cestnik found child pornography on Mr. Peppin's computer in a shared folder.

Detective Cestnik's report of the investigation explains peer to peer file sharing.

According to his report, peer to peer file sharing is a method of Internet communication

that allows users to share digital files. User computers link together to form a network;

the network allows direct transfer of shared files from one user to another. Peer to peer

software applications allow users to set up and share files on the network with others

using compatible peer to peer software. For instance, LimeWire and Shareaza are

software applications that allow users to share files over the Gnutella network.

To gain access to shared files, a user must first download peer to peer software,

which can be found on the Internet. Then, the user opens the peer to peer software on his

or her computer and conducts a keyword search for files that are currently being shared

on the network. The results are displayed and the user selects a file for download. The

No. 32058-8-III State v. Peppin

downloaded file is transferred through a direct connection between the computer wishing

to share the file and the user's computer requesting the file. The Gnutella network gives

users the ability to see a list of all files that are available for sharing on a particular

computer.

For example, a person interested in obtaining child pornographic images opens the

peer to peer software application on his or her computer and conducts a file search using

keyword terms such as "preteen sex." The search is sent out over the network of

computers to those using compatible peer to peer software. The results of the search are

returned and displayed on the user's computer. The user selects the file he or she wishes

to download. The file is then downloaded directly from the host computer onto the user's

computer. The downloaded file is stored on the user's computer until moved or deleted.

When more than one host computer offers the file that is requested, peer to peer

software allows the user to download different parts of the file from different computers.

This speeds up the time it takes to download a file. For instance, a person using Shareaza

to download an image may actually receive parts of the image from multiple computers.

However, often a user downloading an image file receives the entire image from one

Every file shared on the Gnutella network has a unique identifier based on a

Secure Hash Algorithm (SHAl) value, sometimes called a hash value. The SHAI value

acts as a fingerprint for that file. It is computationally infeasible for two files with

different content to have the same SHAI hash value.

A peer to peer file transfer is assisted by reference to an Internet Protocol (IP)

address. In general, the numeric IP address is unique to a particular computer during an

online Internet session. The IP address provides a location, making it possible for data to

be transferred between computers. Investigators can search public records on the Internet

to determine which Internet provider is assigned the IP address. Investigators can contact

the Internet provider and gain information about the user based on the IP address assigned

to the computer.

Detective Cestnik searched the Gnutella network for "pthc," the commonly used

term for preteen hard core Internet pornography. Clerk's Papers (CP) at 17. The results

indicated that images matching the search terms could be found on a host computer with

an IP address linked to Spokane. Detective Cestnik's check of the IP address through two

different Internet search engines confirmed that the IP address was in Spokane and that

Qwest Communications was the provider.

Detective Cestnik used the IP address to access the host computer. The host

computer was configured to allow browsing of its shared folder. Detective Cestnik

viewed the contents of the folder and noticed four files that appeared to be child

pornography. Detective Cestnik successfully downloaded three files from the host

computer before it stopped. After reviewing the videos in the files, he determined that

each video constituted possession or dealing in depictions of minors engaged in sexually

explicit conduct.

Detective Cestnik presented Qwest Communications with a search warrant

requesting information on the IP address for the host computer. Qwest Communications

advised Detective Cestnik that the IP address was connected to Mr. Peppin and provided

Mr. Peppin's address.

Detective Cestnik then obtained a search warrant for Mr. Peppin's computer. A

complete forensic investigation uncovered over 100 videos of what appeared to be minors

engaged in sexually explicit conduct. The State charged Mr. Peppin by amended

information with three counts of first degree possession of depictions of minors engaged

in sexually explicit conduct and one count of first degree dealing in depictions of minors

engaged in sexually explicit conduct.

Mr. Peppin moved to suppress the computer files downloaded by Detective

Cestnik during his Internet search. He maintained that law enforcement's access and

download of his computer files via the Internet was an intrusion into his private affairs

and an unlawful warrantless search. At the suppression hearing, Mr. Peppin also argued

that the use of enhanced peer to peer software provided information to law enforcement

that was not available to the general public.

At the hearing, in addition to the report provided by Detective Cestnik, the court

heard from Mr. Peppin's expert, Jennifer McCamm. Ms. McCamm worked as a

computer system administrator, with some background in computer forensics. Ms.

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