Which of the following incidents does NOT trigger a mandatory IAB response?

The correct choice indicates that large parties involving less significant force do not trigger a mandatory Internal Affairs Bureau (IAB) response. This is based on the understanding that not all incidents involving force warrant a formal investigation at the level of IAB, especially if the force used is determined to be within acceptable limits and does not result in significant outcomes such as injury or hospitalization.

In contrast, incidents like arrests involving domestic violence or any force that results in hospitalization trigger strong protocols because of the potential for serious implications, both legally and ethically. Similarly, knee strikes causing injury would require an IAB review to assess the appropriateness and legality of the force applied.

Thus, the emphasis is on distinguishing between incidents that are serious enough to warrant IAB scrutiny versus those that are less severe and can be managed within the department's regular oversight mechanisms. This understanding is essential for accurately determining when IAB involvement is necessary, reflecting the department's commitment to accountability and transparency.