PositiveID Corporation announced that it has appointed Lyle L. Probst President of the company. Mr. Probst, who has 15 years of managerial experience with large bio-detection programs and products, joined PositiveID in 2011 at the time that PositiveID acquired Microfluidic Systems, based in Pleasanton, CA. Before joining Microfluidic Systems, Mr. Probst directed bio-detection programs at Lawrence Livermore National Laboratory ("LLNL").