Brown & Root Industrial Services - - Responsibilities: Patrols, periodically, buildings and grounds of work site.; Examines doors, windows, and gates to determine that they are secure.; Warns violators of rule infractions, such as loitering, smoking, or carrying forbidden articles, and apprehends or expels miscreants.; Inspects equipment and machinery to ascertain if tampering has occurred.; May record data, such as property damage, unusual occurrences, and malfunctioning of machinery or equipment, for use of supervisory staff.