In this fast paced society, there are increased instances of crime, vandalism and burglary are increasing. It is in this context private security personnel are playing an important role in the prevention of crimes and keeping a vigil on our schools, institutions and public places so that they remain safe and thus do a great service to the society.
The main task of private security personnel is to protect their employer's property form any unlawful activity. They also have to monitor alarms and close-circuit TV cameras. Private security guards have to control access points for various visitors and employees. They have to conduct security checks in a specified area.
http://www.schoolanduniversity.com/study-programs/criminal-justice/private-security
http://www.trafficgeyser.net/lead/private-security