Close observation of an individual or group; person or persons under suspicion.
Systematic observation of places and people by visual, aural, electronic, photographic or other means.
Continuous monitoring of disease occurrence for example.
In criminal law, an investigation process by which police gather evidence about crimes, or suspected crime, through continued observation of persons or places.
The state of being a ward of someone.
In English feudal law, the guardianship which the lord had of the land of his vassal while the latter was an infant or minor.