North American Security and Investigations, Inc. ("NASI") is a full-service firm that fulfills all types of investigative assignments, including field investigative services in the areas of general liability, workers' compensation (both AOE/COE and sub-rosa), automobile collision investigations & reconstructions, due diligence work for law firms, and personnel investigations for numerous clients. NASI's principals have over 90 years of combined experience in conducting or supervising all aspects of the investigative arena.