Click on the following links. Please note these will open in a new window.

Read about and listen to the arguments for Katz v. U.S.
http://www.oyez.org/cases/1960-1969/1967/1967_35/

Police Link: Plain View Doctrine
http://policelink.monster.com/training/articles/2043-plain-view-doctrine-

Warrantless Curtilage Searches- Huffington Post
http://www.huffingtonpost.com/brad-reid/warrantless-curtilage-searches_b_3600127.html