(Also "Monitory assertion" or "Formal admonition") A wizard's formal assertion that he, she or it is -- reluctantly -- about to embark on a course of action that may involve the use of deadly force.

The formula varies from species to species, but the version Nita uses when being fired upon at the Crossings is typical:

In Life’s name, and for Its sake, I advise you that I am here on the business of the Powers that Be! Your actions toward me, and through me, toward Them, will determine the continuance or revocation of your present status. Be warned by me, and desist!

(WAW)