Evidence gathering equipment

Gather important information the agent used was it aerosol, liquid, gas, powder or vapor location method of delivery do you have the necessary personal protective equipment (PPE) to deal with the hazard, or have you called for assistance by a specialized team are you sure that anyone who enters a contaminated area has the proper PPE and is trained in its use be sure to establish control — keep all victims, non-victims and bystanders at the crime scene (if there is any suspicion of an attack) until it is determined who among them may be a terrorist or a witness perform decontamination, triage if necessary, isolation, quarantine, search and locate evidence, maintain chain of control, and collect samples. 

The first phase of process safety incident investigation involves gathering all the pertinent facts from the collected evidence, whether derived from interviews, site and equipment inspections, or document reviews. At this... 

The over-all recovery plan started with steps to lower radiation levels, concurrent with the gathering of evidence from the reactor building. Following this, much of the equipment and structure above the reactor pressure vessel was removed, permitting the final step of removing the pressure vessel and transporting. it to the Hot Shop in the north end of the National Reactor Testing Station, where specialized equipment was available to dismantle and examine the core. 

The gathering of evidence is a fact-finding process that provides the data to be analyzed, and prevention decisions can be based upon the findings. The investigator s evidence usually comes from four sources people, locations, equipment/parts/ accessories, and paper documentation. The evidence sought should identify what was normal, what occurred abnormally, what time it occurred, how it happened, and what the results of the incident were. 

Gather evidence from many sources during an investigation. Get information from witnesses and reports and observation. Get copies of all reports (documents containing normal operating procedures, flow diagrams, etc., maintenance charts, or reports of difficulties or abnormalities). Keep complete and accurate notes. Record pre-incident conditions, the incident sequence, and post-incident conditions. In addition, document the location of employee, witnesses, equipment, energy sources, and hazardous materials. 

High sensitivity sampling smoke detection systems provide the best form of rapid smoke detection for Ir hly critical equipment or in high air flow situations. The Very Early Smoke Detection and Alarm (VESDA) system is basically a suction pump with collection tubes or pipes that use an optical smoke detection device test for evidence of smoke particles. Since it gathers air samples from the protected area, it is much faster in detection than ordinary detection devices that have to wait for the smoke to arrive to it. VESDA systems may be subject to some dilution effect to the sampling mechanism since the tubes may collect air samples from several sampling ports. This may reduce its response time. 

Controlling the accident scene is critical, not only to the success of any accident investigation, but to the safety of those working at the scene. If the accident scene is disturbed, such as equipment moved or spills cleaned up, it will be more difficult to gather facts about exactly what happened. In addition, if bystanders are allowed to enter into the accident area, they may interfere with the work of response personnel or disturb evidence needed for the investigation. 

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