My initial search idea was simple. Let the user select what they wanted to search for, and give them an easy interface. Give them a UI that they are accustomed to seeing.
The requirements changed several times during the project, but I was able to implement something similar into the site that would make searching a whole lot more simple.
I reinforced this concept throughout the rest of the site so that the user understood if they were logged-in or not, and if they had access to the material or not.
Our old search made it really difficult to find and download attachments from events that had happened previously. I proposed that we fix that in the new Search UX.