Port Townsend, Washington-based Intellicheck Mobilisa said this morning that it has replaced its CEO, naming Dr. Nelson Ludlow as President and CEO. Ludlow as most recently Chairman of the company's board. Intellicheck Mobilisa said that its former CEO, Steve Williams, has been "separated" from the company. Details of the sudden departure move were not announced. Michael D. Malone has been appointed Chairman of the company's board. Intellicheck Mobilisa develops wireless identification and access control products, many of which are used in government installations.