Construction job sites attract trespassers during winter and summer for various reasons. In the winter, roofs and walls that are easily accessible provide shelter from the cold and rain. In the summer, longer days and more evening light make half-completed structures look exciting and adventurous. On the night of May 15, one of our nightshift operators was alerted to motion at a construction site in Hillsboro. She could see three individuals lurking on the site and she dispatched the police. After that, she received an alarm from the stairway and could see human shadows. When police arrived, they saw three figures running through the site but were only able to arrest one because the other two got away. At 1 a.m. on Saturday, another operator received motion viewer activations from a Tacoma school that is currently under construction. The operator could see someone moving out of view and she dispatched Tacoma PD. The first time around, the officers cleared the site and didn’t find anyone. A little while later, the police dispatcher reached out to Kris and requested a key-holder for the site, because apparently the police had found the suspect after all. The key-holder requested that the suspect be taken into custody. Trespassing poses serious threats to job sites. Damage, even unintentional damage, can cause major setbacks in budget and timelines. Liability concerns also come up in a trespassing situation. The easiest way for project managers to avoid the headaches and expenses caused by unwanted visitors to a job site is by keeping people out in the first place. Fences, lighting and notice signs can be good deterrents to trespassing. Video verified job site alarms can finish the job when trespassers do make it through physical barriers by notifying alarm monitors, who then dispatch police. The verification of illegal activity prompts a faster and more prepared police response.