The principal objective is the safety of passengers , crews , ground personnel and the general public in all aspects relating to protection against unlawful acts of interference in civil aviation , including the diversion of aircraft in flight ; seizure of aircraft on the ground ; hostage-taking aboard aircraft ; forcible intrusion into an aircraft , an airport or the precinct of an aeronautical facility ; the bringing of weapons , devices or substances intended for criminal purposes aboard an aircraft or into an airport ; the communication of false information affecting the safety of aircraft in flight , on the ground or in aeronautical facilities ; and any other circumstance that compromises the safety of civil aviation . Lastly , the Directorate of Civil Aviation is currently in the process of certification to the ISO 9000 standards , for which the Aviation Security Service ( AvSec ) has been accredited .