Final answer:
The statement that could be used in the theme development step of an interrogation using the Reid technique is: 'You can either come clean, or let the truth come out on its own.'
Step-by-step explanation:
In the theme development step of an interrogation using the Reid technique, the statement that could be used is: You can either come clean, or let the truth come out on its own. This statement is effective because it presents a clear choice to the person being interrogated and implies that admitting the truth is the better option.
The Reid technique is used in law enforcement to elicit confessions from suspects. During the theme development step, the interrogator presents a moral justification or rationalization for why the suspect may have committed the crime. The goal is to make the suspect feel more comfortable confessing.