Individuals who are simply "hanging around" are often up to no good. VCAsys can draw operators' attention to this suspicious behaviour, enabling more effective monitoring of CCTV images.

Individuals loitering near access doors may be looking to "tailgate" an authorised member of staff in order to gain access to the premises or to a restricted area. They might alternatively be tampering with security equipment in order to avoid detection.

Loitering youths may vandalise equipment or buildings, such as spraying graffiti or tags. They may alternatively be drinking or taking illegal drugs, or trying to sell drugs to passers-by.