1) I patrol industrial and commercial premises to prevent and detect signs of intrusion and ensure security of doors, windows, and gates.
2) I answer alarms and investigate disturbances.
3) I monitor and authorize entrance and departure of employees, visitors, and other persons to guard against theft and maintain security of premises.
4) I write reports of daily activities and irregularities such as equipment or property damage, theft, presence of unauthorized persons, or unusual occurrences.
5) I call police or fire departments in cases of emergency, such as fire or presence of unauthorized persons.
6) I circulate among visitors, patrons, and employees to preserve order and protect property.