Which of the following is NOT a possible effect of stress on law enforcement personnel?

The option indicating "improved cooperation" is the correct choice because stress typically does not lead to enhanced collaboration or teamwork among law enforcement personnel. In fact, stress can create a range of negative outcomes, including burnout, mental health issues, and strained relationships, which can hinder communication and cooperation within a team or department.

Under high-stress situations, law enforcement officers may experience feelings of anxiety or overwhelm that can affect their ability to work effectively with others. This can manifest in an increased sense of isolation or difficulty in team dynamics, contrary to improved cooperation. Recognizing that stress negatively impacts job performance is crucial for understanding the broader implications on both individual officers and their units.