$($a$)($i$)$ How can multi$-$casuality theories aid PrintUp with future accident investigations $?(6)$ Note:You should support your answer $,$where applicable using relevant information from the scenario. $($ii$)$ Outline possible possible limitations of multi$-$casuality theories in accident investigations. $($b$)$ Further investigations revealed some previous near miss incidents that had not been reported.

How can near miss reporting be improved at PrintUp?