Originally Posted by T-the-B

How would a true investigation proceed after any of the above responses? I'm not talking about hassling the PAX because he had an attitude or to show who is the boss. I'm interested in how a local LEO could actually conduct a realistic investigation? Understand that no crime will take place until the passenger actually does, in fact, leave the country without having filed the proper paperwork. So long as he is still in the country any investigation would be, by definition, an investigation into a potential, future crime at best. How exactly does a LEO investigate a crime that has not been committed?

I'm not trying to be cute. I really want to know if LEOs really have enough time on their hands to investigate things which only may happen?