Incident Response and Investigation Flashcards

Immediately following a serious incident on a tree care site, what is the first and most critical priority for the responding CTSP or crew leader?

Answer: Secure the scene to prevent further injuries and preserve evidence.

The immediate priority after ensuring medical attention is provided is to secure the scene. This involves controlling access to the area to prevent further harm to other employees or the public and to preserve the physical evidence exactly as it was at the time of the incident. This step is crucial for an accurate investigation and for determining the root cause.

A CTSP is leading a post-incident investigation. The primary goal of conducting a root cause analysis is to:

Answer: Identify underlying system or process failures to prevent recurrence.

Root cause analysis (RCA) is a systematic process designed to uncover the fundamental reasons why an incident occurred. The focus is on identifying systemic issues, process flaws, or latent hazards, rather than simply stopping at the immediate cause or assigning blame. By addressing the root cause, an organization can implement corrective actions that prevent similar incidents from happening in the future.

During an accident investigation interview, which type of question is most likely to yield unbiased, detailed information from a witness?

Answer: Open-ended questions that encourage a narrative response.

Open-ended questions, such as 'Can you describe what you saw?' or 'Tell me what happened in your own words,' are the most effective for gathering factual information without influencing the witness. This technique allows the witness to provide a detailed, narrative account, which can reveal crucial details that the investigator might not have thought to ask about directly.

Which of the following pieces of physical evidence at a tree care incident scene should be documented and preserved for a comprehensive investigation?

Answer: The condition of the tree, equipment involved, PPE, and environmental factors.

A thorough investigation requires documenting and preserving all relevant physical evidence. This includes the condition of the specific tree or limb involved, all equipment (both damaged and intact), the PPE worn by individuals, and environmental factors like ground conditions or weather. Each element can provide a clue to the incident's root cause.

Following a near-miss where a climber's rope was nearly severed by a hand saw, a CTSP conducts a post-incident review with the entire crew. The MOST important outcome of this review is:

Answer: Developing specific, actionable steps to prevent a similar event.

The ultimate purpose of a post-incident review, especially for a near-miss, is to learn from the event and implement changes to prevent a future, potentially more severe, incident. The most critical outcome is the development of concrete, actionable corrective actions that address the identified root causes.

In the context of a tree care incident investigation, a 'direct cause' is best defined as:

Answer: The specific unsafe act or hazardous condition that immediately preceded the incident.

An incident investigation typically identifies different levels of causes. The 'direct cause' is the most immediate and obvious reason for the incident, often an unsafe behavior (e.g., not wearing PPE) or an unsafe condition (e.g., a faulty carabiner) that was present just before the event occurred. Root cause analysis seeks to find the indirect and root causes that allowed the direct cause to exist.