Which of the following is NOT one of the internal influences on behavior?

The correct answer identifies department regulations as something that does not fall under the category of internal influences on behavior. Internal influences typically refer to personal emotions, thoughts, and beliefs that originate within an individual, affecting their behavior and decisions.

Officer's ethical beliefs, greed, and anger are all aspects of an officer's internal state. These internal influences shape how an officer might respond in various situations based on their personal moral compass, desires, or emotional reactions. For instance, ethical beliefs guide decisions towards integrity, while emotions like anger can lead to impulsive actions. Greed reflects personal desires for gain that can impact behavior adversely.

On the contrary, department regulations are external influences that govern how officers should conduct themselves according to organizational policies and procedures. These regulations are established rules which come from outside the individual and create a framework for acceptable behavior. Thus, while department regulations play a crucial role in guiding conduct, they do not stem from within the officer, making them distinct from the internal influences listed.