If you want a really interesting read, which is great at showing how a methodical enquiry is carried out is here: https://www.theisrm.org/documents/Fennel%20(19

If you want a really interesting read, which is great at showing how a methodical enquiry is carried out is here: https://www.theisrm.org/documents/Fennel%20(1988)%20Investigation%20Intointo%20the%20Kings%20Cross%20Fire.pdf https://www.theisrm.org/documents/Fennel%20(1988)%20Investig... It might look long but is still really interesting to read, the simple questions that needed to be answered, the interviews and the conclusion.