Which role does NOT require protective clothing during operation according to the provided practices?

The role that does not require protective clothing during operation is associated with the Rapid Response Team members. This designation implies that their primary focus may involve assessing situations, coordinating responses, and managing incidents rather than engaging in direct combat with hazards. Rapid Response Team members are typically trained to identify and mitigate risks but may not be involved in operations where direct exposure to hazardous conditions is anticipated.

On the other hand, investigators, boundarymen, and attack team members have specific responsibilities that necessitate the use of protective clothing. Investigators often work in environments that may involve exposure to harmful materials or conditions while they assess damage or investigate incidents. Boundarymen are responsible for securing the perimeter of hazardous areas, where risks could be present; hence, protective gear is essential to ensure their safety. Attack team members are directly involved in firefighting or damage control operations, where they must protect themselves against heat, smoke, and other environmental dangers, necessitating the use of protective clothing.

Thus, the function of a Rapid Response Team member aligns better with non-hazardous tasks that do not mandate immediate protective measures compared to the other roles mentioned.