This report describes the development, field testing, and evaluation of a new method of investigating mining accidents. Initial testing of these techniques began at five mines owned by two mining companies, followed by further evaluation data obtained from four surface and two underground mines operated by five additional companies. Altogether, there were 170 loss incidents investigated at the cooperating mines using the methodology under evaluation. These loss incidents included injuries, property damage accidents, production losses, and other events generally referred to as "near misses." Volume II of this report discusses the field tests at the second group of mines, modifications made to the initial methodology, and the results of its implementation.