Inner City Guards

[Yumyums Inmahtumtums]

As a preface to this thread, I'm just trying to save some time from running across the world and checking.

The Wiki has the guards inside most cities listed as "immune to magic" but I was under the impression this really only applied to the two guards at the gate in most cities. Does anyone know if most guards that roam cities (typically between 35-43) are actually immune to magic?

Thanks in advance kind community.