Liberty Defense Holdings, Ltd. announced the appointment of Robert (Bob) Falk as Vice President of Sales and Business Development. Mr. Falk has over 20 years of experience in the detection and security inspection industries as well as in business development and sales. Mr. Falk served as Evolv Technology's Director of International Sales, and has also worked as an independent aviation security consultant for a number of U.S. and European companies including Gilardoni, AS&E and Surescan.