Isolate search results in SharePoint 2013

Question

I'm researching methods to isolate queries and results within SharePoint 2013 Search, allowing different data to be searched under different situations. The other caveat being that a user control configuration is unacceptable (as it would allow power users to potentially gain access to data they shouldn't see).

The example case is:
-General users should be able to search Sharepoint normally except for items of TYPE X
-Search for critical items of TYPE X must be always be audited and must always run through a separate search form which tracks detailed information
-Because TYPE X is sensitive customer data, it must never be searchable by any other means

I'm wondering if this can be done via configuration plus a custom search webpart, perhaps using Metadata managed properties.

Answer 1

Have you looked at creating your own result source, add filter to remove items of Type X and make that as default result source?

Here is the link to TechNet article explaining how to create a Result Source: http://technet.microsoft.com/en-us/library/jj683115(v=office.15).aspx