Defendant had no 4th Amendment reasonable expectation of privacy in his shared folder associated with the P2P (peer-to-peer) network. (312) (425)
The evidence leading to defendant’s arrest was obtained when police used software that targets peer-to-peer file-sharing networks to identify IP addresses associated with known digital files of child pornography. Defendant argued the use of this software violated his Fourth Amendment rights by infringing on his reasonable expectation of privacy on his computer. However, defendant had no reasonable expectation of privacy in his shared folder associated with peer-to-peer network.
People v. Evensen ____ Cal.App.4th ____, ____ Cal.Rptr.3d ____, 2016 D.A.R 10784 (1st Dist. 2016) October 27, 2016 (A145162)
What is P2P or peer-to-peer?
In its simplest form, a peer-to-peer (P2P) network is created when two or more PCs are connected and share resources without going through a separate server computer. A P2P network can be an ad hoc connection—a couple of computers connected via a Universal Serial Bus (USB) to transfer files. From
Peer-to-peer (P2P) is a decentralized communications model in which each party has the same capabilities and either party can initiate a communication session. Unlike the client/server model, in which the client makes a service request and the server fulfills the request, the P2P network model allows each node to function as both a client and server. from http://searchnetworking.techtarget.com/definition/peer-to-peer
The original peer to peer network was Napster. Popular P2P networks since then have been LimeWire, uTorrent, BitTorrent, Pando and Emule, to name just a few.