(1) A person who-
(a) knowingly causes a nuclear weapon explosion;
(b) develops or produces, or participates in the development or production of, a nuclear weapon;
(c) has a nuclear weapon in his possession;
(d) participates in the transfer of a nuclear weapon; or
(e) engages in military preparations, or in preparations of a military nature, intending to use, or threaten to use, a nuclear weapon,
(2) Subsection (1) has effect subject to the exceptions and defences in sections 48 and 49.
(3) For the purposes of subsection (1)(b) a person participates in the development or production of a nuclear weapon if he does any act which-
(a) facilitates the development by another of the capability to produce or use a nuclear weapon, or
(b) facilitates the making by another of a nuclear weapon,
knowing or having reason to believe that his act has (or will have) that effect.
(4) For the purposes of subsection (1)(d) a person participates in the transfer of a nuclear weapon
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