Which of the following is NOT typically a responsibility of a police officer?

Creating laws is not typically a responsibility of a police officer, as this function is primarily the domain of legislative bodies, such as state legislatures or city councils. Police officers enforce the laws created by these legislative entities rather than enacting or drafting them.

In contrast, conducting investigations is a key duty of police officers, enabling them to gather evidence and solve crimes. Testifying in court is another important function, as officers often provide critical testimony on cases they have investigated. Making arrests is also a fundamental responsibility, allowing officers to apprehend suspects based on evidence of criminal activity. Thus, the role of a police officer revolves around enforcement and application of the law rather than its creation.