Unknown
Whose whereabouts are unknown
Reported
Any person who is reported missing to police
Fears
There are fears for the safety, or concerns for the welfare, of that person
Fears for safety
Zones of safety: Fears arise when the person is outside of their usual surrounding.
Age: In the case of small children, or elderly fears may arise as soon as their absence is noted.
Circumstances: Fears arise if they have gone missing in circumstances that are unusual, dangerous or suspicious.
Categories of Missing Persons
Voluntary.
Involuntary.
Lost due to event.
Missing overseas.