Wildlife biologists play a key role in the preservation and management of wildlife. We also conduct surveys to determine the potential for sensitive species to occur to support development. These studies are used by land managers, resource agencies, and consultants in the evaluation of impacts associated with infrastructure projects. This session focuses on how to ethically balance advocacy for the species, the client, and compliance with environmental laws. consequences that affect projects or studies when critical mistakes are made in the field, in the data analysis, or the conclusions presented in a report. We will discuss how these errors often accumulate or are compounded overtime, where they often occur, and how they should be remedied when discovered. More importantly, we will highlight methods that should be used when planning and conducting field work, how to support your conclusions, and how to prepare legally defensible documents.