Accident investigation documents do not act as supporting evidence for which of the following?
An incident investigator’s task is to collect and organize evidence to uncover the truth behind the incident. However, information gathered can be misleading. Witnesses may tell conflicting stories about the same incident. Show Environmental conditions can change before the investigator arrives at the scene. Paperwork, such as a procedure, may be lost or altered. How can an investigator get to the facts of the incident? By remembering to collect four types of evidence. There are four types (or categories) of evidence to be evaluated. TapRooT® investigators call these categories 3 Ps and an R. This stands for:
People EvidenceOften, evidence collection starts with people evidence (a witness statement), and that evidence guides the investigator to collect paper, physical and recording evidence. Examples of people evidence include:
Where do you begin? First determine who was involved. This includes those who planned the work, supervised the work and performed the work. Other considerations include a worker’s capability, capacity, training, and qualification to perform his or her role. Inquire into the background of those involved. Determine if they have been involved in any previous incidents or if they have any related performance or conduct issues. Find out if those involved had any work restrictions such as an impairment, physical capability, or lapsed accreditation. Understand how the employees worked together. What were the dynamics of the team including supervision and team performance. Determine the context (such as environmental conditions, distractions or perspectives). Paper EvidencePaper evidence may include all sorts of things including:
What do you think the biggest mistake is when it comes to collecting paper
evidence… given all of the paper that we have in our workplaces? Collecting too much paper not relevant to the investigation! Don’t make the mistake of collecting so much paper that what you need for evidence is somewhere at the bottom of the stack. Physical EvidencePhysical evidence can range from a very large piece of machinery to a very small tool. It includes hardware and solid material related to the incident. You will gather physical evidence in one of two ways. You will collect it or you will record/document evidence that can’t be collected (for example, it is too large to collect, or it is still in use). Types of physical evidence to collect:
Types of physical evidence to record/document Evidence is recorded when it is impossible to collect or when it is still in use by the workforce. Following is a list of possible evidence to collect by recordings:
Following are additional pieces of information you may want to collect:
Recording EvidenceRecording evidence, such as photography and video, should be captured as soon as possible after an incident to preserve the scene in images before it is altered in any way. It provides a documented overview of the entire scene. This may occur as soon as you or a qualified team member can obtain access to the scene. In addition to video and photography recorded by the investigator, recordings include:
As you record the scene, ask “Am I recording the scene as it was in its original state or has it changed in any way?” If the scene has changed, make a note about what has changed. Identify fragile, perishable evidence and immediately document, photograph and collect it. Also, make a note of any transient evidence that can’t be captured by camera or video like smells and temperature. Remember, the best way to collect unbiased evidence is to gather evidence from each of the four categories: people, physical, paper and recordings. Each piece of evidence collected will lead you to the truth of the incident so that you can identify problems and analyze root causes for effective corrective actions. . What are the 4 major stages to the accident investigation?4-Steps to Manage Incident (Accident) Investigations
Collect Data. Determine root causes. Implement corrective actions.
What is an accident investigation used for?Accident investigation is the process of determining the root causes of accidents, on-the-job injuries, property damage, and close calls in order to prevent them from occurring again.
What are the five main benefits of an accident investigation?help you identify and eliminate hazards, expose deficiencies in your processes or equipment, reduce injury and workers compensation costs, and. maintain and improve employee morale.
What are the components of an accident investigation?The accident sequence. Human factors accident and incident analysis. Equipment factors analysis. Environmental factors analysis.
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