In section 54—

• F1 “ biological weapon ” means a biological agent or toxin (within the meaning of the Biological Weapons Act 1974) in a form capable of use for hostile purposes or anything to which section 1(1)(b) of that Act applies,

• “chemical weapon” has the meaning given by section 1 of the M1Chemical Weapons Act 1996, and

• F2 “ radioactive material ” means radioactive material capable of endangering life or causing harm to human health,

• F3. . .