in-flight security officer, sky marshal, IFSO
mail koostatud Austria Vabariigi, Belgia Kuningriigi, Hispaania Kuningriigi, Luksemburgi Suurhertsogiriigi, Madalmaade Kuningriigi, Prantsuse Vabariigi ja Saksamaa Liitvabariigi vahelise eelkõige terrorismi-, piiriülese kuritegevuse ja ebaseadusliku rände vastases võitluses piiriülese koostöö tõhustamise lepingu (edaspidi Prümi leping) alusel vastutab turvalisuse eest õhusõiduki pardal ning kannab kaasas ametirelva ja selle laskemoona, a person who is authorized by the government of the State of the Operator and the government of the State of Registration to be deployed on an aircraft with the purpose of protecting that aircraft and its occupants against acts of unlawful interference. This excludes persons employed to provide exclusive personal protection for one or more specific people travelling on the aircraft, such as personal bodyguards, a person who is employed by a state to travel on an aircraft of an air carrier licensed by it with the purpose of protecting that aircraft and its occupants against acts of unlawful interference that jeopardise the security of the flight