(a) Suggest and discuss the possible causes of this unexpected collapse of the building. Plan an investigation and identify the information/documents which may be required in deciding what really caused the collapse in the first place. Outline what your final report is likely to consist of. (b) As a forensic engineer, give details of the process that you may follow during such an investigation, including any specific field/laboratory tests to be undertaken. Discuss the different dispute resolution processes that could apply to such a failure and what role would you play as an expert witness in court