What command indicates readiness to receive a communication?

The command that indicates readiness to receive a communication is "Prepare to Copy." This phrase is commonly used in law enforcement and emergency communication contexts to alert others that someone is ready to take down information, such as details about an incident or instructions from a supervisor. It signifies that the person is attentive and prepared for the incoming message, ensuring clarity and accuracy in communication, which is vital in high-stakes or urgent situations.

In contrast, the other phrases listed serve different purposes within law enforcement and do not convey a state of readiness for communication. "Possible Dead Body" is a call-out related to a specific incident, typically indicating that a unit should be dispatched to investigate a report. "Check on welfare of" signifies a request for a welfare check on an individual, which shows concern for their safety. "Suicide" relates to a specific critical situation requiring immediate attention but does not pertain to a command indicating readiness for communication. This contextual understanding emphasizes the importance of clear communication protocols in the field.