This app is developed with content related to security professionals based in UAE - those affiliated / operated by ASSD (PSBD) in order to help enhance their job related knowledge - providing study materials (course-book), practicing platform to possible Questionaries and Demo Exam platform (with timer) with intension to help you with identical scenario in order You to assess your knowledge. Content in the app will help you most for preparation of NSI (National Security Institute) test and ASSD (Auxiliary Security Service Department) still known as PSBD (Private Security Business Department) in some part of the Nation.