I worked on a site called DaSilva Gates I had white male run on site in to the equipment and I had to find the subject. Unable to find subject I called Dispatch then called police I had 2 hours to find the subject. Me and a supervisor patrolled the site over and over but I forgot the golden rule notify site manager. Then 3am in morning employees was coming in to work then all equipment was started up and I knew it was to late. What if the subject was hiding in the equipment he would of been chopped up. This was a rock and sand plant with 100 of trucks coming and going talking about stressful night.