(ii) be made in the knowledge of the intention of the group to commit an offence

set forth in paragraph 1, 2 or 3 of this Article.

Article 2

For the purposes of this Convention:

(a) an aircraft is considered to be in flight at any time from the moment when all its

external doors are closed following embarkation until the moment when any such

door is opened for disembarkation; in the case of a forced landing, the flight shall be

deemed to continue until the competent authorities take over the responsibility for the

aircraft and for persons and property on board;

(b) an aircraft is considered to be in service from the beginning of the preflight

preparation of the aircraft by ground personnel or by the crew for a specific flight until

twenty-four hours after any landing; the period of service shall, in any event, extend

for the entire period during which the aircraft is in flight as defined in paragraph (a) of

this Article;

(c) “Air navigation facilities” include signals, data, information or systems necessary for

the navigation of the aircraft;

(d) “Toxic chemical” means any chemical which through its chemical action on life

processes can cause death, temporary incapacitation or permanent harm to humans or

animals. This includes all such chemicals, regardless of their origin or of their method

of production, and regardless of whether they are produced in facilities, in munitions

or elsewhere;

(e) “Radioactive material” means nuclear material and other radioactive substances which

contain nuclides which undergo spontaneous disintegration (a process accompanied by

emission of one or more types of ionizing radiation, such as alpha-, beta-, neutron

particles and gamma rays) and which may, owing to their radiological or fissile

properties, cause death, serious bodily injury or substantial damage to property or to

the environment;

(f) “Nuclear material” means plutonium, except that with isotopic concentration

exceeding 80 per cent in plutonium-238; uranium-233; uranium enriched in the isotope

235 or 233; uranium containing the mixture of isotopes as occurring in nature other

than in the form of ore or ore residue; or any material containing one or more of the

foregoing;

6 DE OUTUBRO DE 2020______________________________________________________________________________________________________

81