Chemical, biological, radiological, nuclear and explosive (CBRNE) events refer to the uncontrolled release of chemicals, biological agents or radioactive contamination into the environment or explosions that cause widespread damage. CBRNE events can be caused by accidents or by terrorist acts (accidental and intentional). Select ONE (1) of each of the CBRNE's cases and explain it in brief (story-telling and lesson learnt). (a) Chemical-related case history of an intentional event. [8 Marks [CO2, POI, C3] (b) Biological-related case history of an accidental event. 18 Marks