What procedure should be followed when an officer needs assistance?

When an officer requires assistance, the correct procedure is to request backup using the designated codes, such as Code 1-2-3. This action is critical for ensuring officer safety and effective response to incidents. By calling for backup, the officer communicates their need for additional personnel, which can provide support in potentially dangerous situations or when dealing with multiple suspects. This procedure helps maintain control of the scene and enhances the overall safety of all involved, including the public.

The other options do not align with the standard protocols in emergency situations. Wrapping up the scene would not be appropriate if the situation is still active or requires additional support. Ending or beginning a tour of duty does not address the immediate need for assistance and could potentially leave an officer vulnerable if they are faced with a challenging situation without backup. Therefore, the procedure to request backup is essential for maintaining safety and operational effectiveness.