Which of the following is NOT an example of early warning signs?

Consistent compliance is indeed the correct answer as it does not represent an early warning sign. In a high-stress environment like a jail, consistent compliance usually indicates that an individual is following orders and adhering to rules without exhibiting signs of resistance or distress. This behavior can suggest that the person is stable and not likely to present a threat.

In contrast, ceasing all movement, exaggerated movements, and known violent behavior all serve as indicators that could signal potential issues. For example, ceasing movement might suggest fear or apprehension, exaggerated movements can indicate agitation or emotional instability, and known violent behavior is a direct indicator of a person's past conduct, which may predict future actions. These behaviors warrant attention as they may lead to conflicts or altercations. Thus, while consistent compliance is a sign of stability, the other options highlight behaviors that could alert staff to potential risks.