In the world of Information Technology and improved technological designs, anyone can be a threat to civil aviation, public safety and national security in general. Generally, the aviation domain is very sensitive in terms of security measures and always faced with security threats by either criminals or terrorists. The book focused on the effectiveness of airport security at the Namibian aerodromes serving international civil aviation and designated as ports of entry or exit; whereby the investigation was done at Hosea Kutako International Airport as a case study area.