There are two types of notes in DISCO: Document notes and privilege notes.
Document notes act like a digital sticky note on a document. The document notes, when saved, are searchable, and only viewable by those with access to the database. To search the content of a document note, search documentnotes() and add your content between the parentheses. To search and find all documents with a document note, search hasdocumentnote(true).
Privilege notes will automatically be added to the downloadable privilege log (often used to note the reason for withholding a document due to privilege).
Documents with a privilege tag, or a redaction, will automatically be added to the downloadable privilege log. To search for documents with at least one privilege tag, use hasprivilege(true).