EOO, Inc. proposes to combine a near-infrared aerosol lidar and a UV fluorescence sensor in a compact, unmanned-air-vehicle compatible package, to counter the threat of biological warfare agents. This approach uses an eye-safe lidar to probe large regions for suspicious aerosol clouds and a laser-based UV bio-fluorescence sensor for positive biological agent determination. The biologic agent sensor technology we are developing has several advantages over long and short range Biologic Standoff Detection Systems, including simplicity, autonomous operation, and cost. In Phase I, with our key subcontractor SRI, we will systematically define a set of requirements for DARPA's Biological Agent Sensor, perform system analyses to ensure that our proposed baseline meets these requirements, perform system trades to optimize the performance and minimize the size weight and power, and design a baseline autonomous biological agent sensor to be implemented in Phase II.