Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
According to the Pinkerton Manual, it is group forces of men selected, trained and or grouped into a functional unit for the purpose of protecting operational processes from disruptions which would impede efficiency or halt operations at a particular plant, facility, installation, or special activity.
