Search and Seizure in the Schools

This evening I am working on legal briefs for my Legal Issues course.  My case for this week's assignment focuses on whether searching a student's private property on school campus violates the Fourth Amendment of unreasonable search and seizure.  The long and short of this case is that the Supreme Court of the U.S. has ruled that it is not a violation of the student's Fourth Amendment rights providing that the search is reasonable and not excessively intrusive. 

For those that do not have a legal mind, the biggest thought to an educator is what is deemed reasonable and what is deemed excessively intrusive.  Knowing what the courts deem reasonable will help facilitate best practice where searching student's property is concerned.  Recently one student went all the way to the Supreme Court to help define what was reasonable and excessive in nature.  The Supreme Court ruled that this student's constitutional rights were violated when she was strip searched by her school in Arizona.  The school officials in this case suspected the student of hiding an Ibuprofen tablet in her panties.

The case was clear cut to me from the beginning, but poses and interesting question to educators.  How far is too far?  Many districts have specific personnel that are trained to handle searches in the even that they need to occur so that a teacher need not get involved.

What is your take on the subject?  How far is too far?  What do you consider acceptable?