Ingenieur Vol 76 ingenieur 2018 October | Page 62

INGENIEUR e. Preparation of equipment Before  entering  any incident scene, the investigation team  needs  to identify all required relevant equipment, depending on type of incident. For example, if the incident relates to the release of chemicals, suitable equipment such as FTIR and multiple gas detectors are important to detect and measure the quantity as evidence. f. Operations planning The forensic  engineer leads  as the co- ordinator for the team of experts. Experts should be not only selected  for  their technical capabilities but must be familiar with  the legal process since they may be called upon to testify in a case. Frequent meetings among experts should occur to discuss the subject matter and to bind  the scope of work, right up to the conclusion of the investigation. g. Site investigation and analysis A site visit  is essential to view the real situation and get a better understanding before reaching any conclusions. A site visit  allows  investigators  to evaluate the nature of any failure or incident and plan for  the next task.  The investigator  has the opportunity to simulate the failure or incident, even off site, before drawing any conclusion. Photographs, drawings, personal communications/interviews and notes may become evidence when it comes to legal proceedings. Proper and suitable equipment has to be identified for  a site visit, to record, measure and analyse any evidence during the site investigation. h. Document search All related documentation of an incident or failure such as drawings, contract documents, technical specifications, test records, maintenance records and log books have to be kept to ensure continuity of the legal procedure. The investigator needs to be familiar with and understand international and national standards such as ASME, BS, MS and ISO in order to confirm any breaches. 6 60 VOL 2018 VOL 76 55 OCTOBER-DECEMBER JUNE 2013 i. Literature review Published work has to be reviewed for comparison and references. In addition, several sources from professional bodies or societies such as local universities, SIRIM or Government agencies can be referred to as a guide for investigation processes. j. Investigation synthesis Synthesis of the findings needs to proceed when gathering  information, such as data from site observations, literature reviews, laboratory work and experimental analysis. k. Development of hypotheses Depending on the situation and with all available data, a basic conclusion can be made. However, large scale failure investigations will be more time consuming, as there will be frequent meetings and discussions held before coming up with a conclusion. l. Test of hypotheses Each hypothesis has to be tested to justify the cause of failure. The results of the test can justify each hypothesis. Normally, laboratory work related to the testing and analysing will be conducted to prove the hypothesis. m. Establish most probable cause The probable cause can be established after gathering all information and testing the hypothesis. Investigation methodology such as the Fault Tree Analysis, Failure Mode and Effect Analysis, Root Cause Analysis and Tripod Beta will help to identify the immediate and root cause of the incident. n. Investigation report It is compulsory for the forensic engineer to prepare the investigation report. It will include overall details of the event or failure, the most probable cause, conclusions and suggestions to the court. The report should be understood by all parties. Layman terms must be used, especially in explaining difficult technical words. Justification of