Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Functions (hierarchy name)
4. functions (activities)
5. [functions by general context]
6. analytical functions

Anotations

Scope note:

The function of watching or guarding people, activities, or situations, usually having a connotation of spying on a suspected person or a prisoner, or observing in order to provide supervision for direction or control.